症状インデックス
記事に挙げられたエラーメッセージや観察できる症状のアルファベット順の一覧。検索でも対象になります。
"code": "TooManyRequests"- Following Microsoft Graph's @odata.nextLink and handling 429 throttling and batch limits
"reason": "rateLimitExceeded"- Google API pagination and quota errors: pageToken, 403 rateLimitExceeded and 429
"reason": "userRateLimitExceeded"- Google API pagination and quota errors: pageToken, 403 rateLimitExceeded and 429
-bash: ./script.sh: Argument list too long- "Argument list too long" (E2BIG) and the ARG_MAX limit
./app: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.32' not found (required by ./app)- "version `GLIBC_2.xx' not found" and how to diagnose a glibc mismatch
.dockerignore rule *.log excludes only files at the context root; nested .log files are still sent to the build- Glob pattern dialects: what * and ** mean in .gitignore, .dockerignore, bash, Python and GitHub Actions
.NET HttpClient throws TaskCanceledException after 100 seconds with no explicit Timeout set- Default HTTP client timeouts by language and library: none, 5 seconds, or 100 seconds
/bin/bash^M: bad interpreter: No such file or directory- "exec format error" and "cannot execute binary file": architecture and shebang mismatches
/usr/bin/env: 'bash\r': No such file or directory- "exec format error" and "cannot execute binary file": architecture and shebang mismatches
0.1 + 0.2 is not 0.3- 浮動小数点数:0.1 + 0.2 が 0.3 にならない理由
1 packets transmitted, 0 received, 100% packet loss- make, ping and nc: exit codes that quietly don't check what you'd assume
400 Bad Request- 旧クライアントへの対応を維持しながら HTTP MCP サーバーを 2026-07-28 に移行する
402 Payment Required- x402 v2のHTTP通信を実装する:ヘッダー、ファシリテーター、決済
424 (Failed Dependency) on a batch request that uses dependsOn- Following Microsoft Graph's @odata.nextLink and handling 429 throttling and batch limits
<file1> <file2> differ: byte <n>, line <m>- grep, diff, cmp and test/[: exit code 1 means not-found, not failure
<user>@<host>: Permission denied (publickey).- ssh and scp exit codes: 255 is ssh's own failure, anything else is the remote command's
[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate- TLS verification errors across tools: unknown authority, CERTIFICATE_VERIFY_FAILED, self-signed in chain
A binary record works on one machine but has different offsets or size elsewhere.- Python struct の転送形式:バイト順、サイズ、パディングを明示する
A C call receives a dangling string pointer or memory is released by the wrong owner.- FFI 境界の CString:借用ポインターと所有権の移転を区別する
A cached JSON-RPC response carries a previous request ID- HTTP ロードバランサー配下の MCP 2026-07-28:ルーティングと安全なキャッシュ範囲
A cached list contains tools unavailable to the current authorization context- HTTP ロードバランサー配下の MCP 2026-07-28:ルーティングと安全なキャッシュ範囲
A certificate renewal or library update changes cryptography without updating the inventory.- 耐量子移行に向けた暗号資産台帳の作成と維持
A child acts on a requirement that the parent has superseded- 並行実行するサブエージェントのコンテキストを引き継ぐか、新規にするか
A child process hangs only when its output is captured or verbose.- Python のサブプロセスのパイプ:無期限に待つ前に両方のストリームを読み出す
A child repeats research already completed by its parent- 並行実行するサブエージェントのコンテキストを引き継ぐか、新規にするか
A class is absent from the first training batch- partial_fitによる増分学習:特徴量の一貫性、クラス一覧、適切な評価
A clean textual merge combines incompatible interface assumptions- 並行エージェントが同じ成果物を編集したときの担当責任の競合を解消する
A client still sends initialize before every connection- MCP 2026-07-28:ステートレスなコアと互換性の境界
A client treats input_required as a completed tool result- MCP 2026-07-28:ステートレスなコアと互換性の境界
A command-launching service listens on an unintended network interface- ローカルエージェントの制御API:認証のないプロキシを経由したホストへのアクセスを防ぐ
a config value valid in Prometheus fails when passed to a Go program's own duration parser- Duration and interval strings: ISO 8601, Go's ParseDuration, systemd, Prometheus, PostgreSQL and .NET TimeSpan
A connection uses hybrid key exchange while its certificate still has an RSA or ECDSA public key.- 耐量子署名と公開 TLS 証明書:実用化の準備状況を個別に確認する
A container build or runtime inventory still identifies Python 3.10- サポート終了後の Python 3.10:ランタイムの洗い出しと環境の再構築
A correct password is followed by a failed multifactor challenge- ログインプロバイダーの侵害後の対応:対象を絞ったリセット、セッションの復旧、漏えいパスワードの検査
A cyberattack threatens a covered Swiss operator's essential functions or causes information leakage- スイスのサイバー攻撃報告とCRA:運用者と製品の製造者で異なる義務
A dependency lock file records tensorlake or a listed native package at 0.5.144- 開発者のマシンと公開用アカウントに広がるnpmワームを封じ込める
A deployment is marked complete while endpoint build evidence is missing.- 悪用の証拠と影響を受ける資産に基づき、2026年10月のPatch Tuesdayに優先順位を付ける
A deployment record identifies an affected container image digest- LiteLLM 1.107.0:侵害されたPythonを再起動せずにアーティファクトの影響範囲を調べる
A deployment template contains an explicit list of classical curves.- ハイブリッドのデフォルト設定への移行を妨げる TLS グループの固定設定を見つける
A documentation response asks the agent to read credentials, send data or delete unrelated files- Context7 CVE-2026-75130:ホスト型サービスの修正と信頼できないカスタムルール
A forced hybrid handshake fails while the connection using defaults succeeds.- TLS 接続で X25519MLKEM768 が実際に選択されたかを確認する
A late child response restores a plan the user has changed- 実行中のエージェントの方針を変える:指示のリビジョン管理と副作用の照合
A later function call receives items accumulated by an earlier call.- Python の可変デフォルト値:引数の省略と共有状態を区別する
A library builds locally but its consumers lack headers or required link dependencies.- CMake の PUBLIC、PRIVATE、INTERFACE:グローバルフラグなしで依存範囲を直す
A lifecycle feed is stale, unavailable or returns an unknown end date- SBOM・コンテナイメージ・ソフトウェア台帳を横断したサポート終了検出の自動化
A local control service accepts privileged operations without authenticating the caller- ローカルエージェントの制御API:認証のないプロキシを経由したホストへのアクセスを防ぐ
A login provider reports exposure of password verifiers or session material- ログインプロバイダーの侵害後の対応:対象を絞ったリセット、セッションの復旧、漏えいパスワードの検査
A low-level sender truncates or duplicates output under pressure.- 部分書き込み:全データを再送せず、バッファーのオフセットを進める
A native binding compiles but reads incorrect fields on a supported platform.- Rust FFI のレイアウト:外側の構造体に repr(C) を付けても入れ子のフィールドは修正されない
A native test fails with an out-of-bounds or use-after-free report.- AddressSanitizer の調査:後の動作を信頼する前に最初の不正アクセスを直す
A new enum value disappears, moves to unknown fields or reaches an unhandled application branch.- Protocol Buffers の enum:ランタイムの動作に従って未知の数値を扱う
A notice omits affected accounts, data categories or a usable exposure window- プロバイダーの侵害通知を読む:送信元、影響範囲、指標を検証する
A packed-field access is rejected or an unsafe cast is proposed as a workaround.- Rust のパックされたフィールド:生ポインターへのキャスト前に非整列参照を作らない
A panic or foreign exception unexpectedly crosses a language boundary.- Rust FFI のスタック巻き戻し:パニックと例外の境界を明示的に選ぶ
A partial update cannot reliably clear a scalar value to its default.- Protocol Buffers のフィールドの有無:ゼロの設定と変更しないことを区別する
A patch is installed but investigation of earlier compromise remains open- 脆弱性が悪用されたエッジ機器へのパッチ適用後:証拠保全、復旧、運用再開の確認
A payment has no linked approval or order record- x402、AP2、委任型チェックアウトでエージェントの支出制限を徹底する
A private registry omits publication timestamps needed by the age policy- パッケージリリースのクールダウン:正確な設定、単位、適用範囲
A product incident threatens sensitive data or enables malicious code- 2026年9月からのCRA報告義務:報告要件、期限、Single Reporting Platform
A project treats a free download as sufficient proof that no CRA duties can apply- CRAとオープンソース:コントリビューター、製造者、スチュワードの区別
A proposed direct upgrade treats Windows Server 2012 and 2012 R2 as the same source release- Windows Server 2012 の ESU 終了と Server 2016 の移行期限
A proposed fix uses unsafe pin access merely to satisfy a type error.- Rust Pin:ポインター変数を固定せず、参照先のアドレスを保つ
A provider publishes revised indicators or changes its affected-customer scope- プロバイダーの侵害通知を読む:送信元、影響範囲、指標を検証する
A purchase exceeds its recorded approval- x402、AP2、委任型チェックアウトでエージェントの支出制限を徹底する
A race appears in a service despite a previously clean race-detector test run.- Go の競合検出の範囲:問題のない実行から未実行の経路については何も分からない
A race report names accesses from different threads to the same state.- ThreadSanitizer のトリアージ:欠けている同期契約を明らかにする
A registered tool disappears or changes owner after another server connects- WeKnora CVE-2026-30856:ツールのシャドーイング修正後に呼び出し先を検証する
A Relaunch button remains visible after an update downloads.- Chrome CVE-2026-87491:更新のインストールからブラウザーの再起動までを確実に完了する
A release approval cannot be tied to a specific artifact and source revision- npmとPyPIの公開IDを承認済みリリースアーティファクトに結び付ける
A reporting plan assigns the manufacturer's September 2026 start date to every open-source contributor- CRAとオープンソース:コントリビューター、製造者、スチュワードの区別
a resolved proposal shows no approve/reject count on the gateway- Artifact Council: reading a closed ballot's count and voters from chain
A restarted worker receives a fresh budget for the same task- ログアウト後も動作するエージェントの実行条件を定める
A Server 2016 workload has no migration owner or documented ESU transition plan- Windows Server 2012 の ESU 終了と Server 2016 の移行期限
A server requests sampling/createMessage from the client- MCP Roots・Sampling・Logging:2026-07-28 での非推奨化に伴う移行先
A server-start failure is followed by unexplained filesystem changes- MCP STDIOのコマンドインジェクション:Langflowの修正とFayの影響
A service has a software inventory but no record of negotiated cryptography.- 耐量子移行に向けた暗号資産台帳の作成と維持
A service or scheduled job still points to a Python 3.10 virtual environment- サポート終了後の Python 3.10:ランタイムの洗い出しと環境の再構築
A signal causes spurious failures or repeated retries extend an operation indefinitely.- EINTR の処理:期限を最初から延ばさず、該当する操作を再試行する
A small compressed input expands beyond the intended memory budget.- 上限付き zlib 展開:デコード中に累積出力の上限を守る
A streaming model changes behavior after feature preprocessing changes- partial_fitによる増分学習:特徴量の一貫性、クラス一覧、適切な評価
A supplier reports post-quantum support without identifying the protocol or deployment path.- 耐量子移行に向けた暗号資産台帳の作成と維持
A supporting legal entity is described as a steward without checking its role in product supply- CRAとオープンソース:コントリビューター、製造者、スチュワードの区別
A Swiss manufacturer learns of malicious exploitation affecting its product supplied to the EU- スイスのサイバー攻撃報告とCRA:運用者と製品の製造者で異なる義務
A task ignores cancellation or a structured task scope fails to shut down as expected.- asyncio のキャンセル:CancelledError を握りつぶさずに後始末する
A trusted publisher remains configured after its maintainer leaves- npmとPyPIの公開IDを承認済みリリースアーティファクトに結び付ける
A vendor advisory matches an installed dependency or executed build artifact- 悪意あるパッケージをインストールした場合:認証情報を置き換える前に実行を封じ込める
A verified provider notice identifies stored customer API keys as potentially exposed- APIキーを預けたプロバイダーで侵害が起きた場合:封じ込め、交換、請求の確認
A vulnerability report cannot be mapped to shipped products or component versions- 製造者のCRA脆弱性対応フローを整備する:受付、証拠、報告期限の管理
A Windows 10 inventory entry has no ESU enrolment or activation evidence- 2026年10月以降の Windows 10:個人向けと組織向けの ESU 適用範囲
About Google Chrome displays a version below the approved security baseline.- Chrome CVE-2026-87491:更新のインストールからブラウザーの再起動までを確実に完了する
accept4() failed (24: Too many open files)- "Too many open files" (EMFILE) and the file-descriptor limit
accept4: too many open files- "Too many open files" (EMFILE) and the file-descriptor limit
Access-log entries match the vendor's investigation guidance; a match requires investigation, not an automatic verdict.- ZammadとAtlassianの2026年10月KEV対応:リリースと導入方法に応じて修正を選ぶ
Agent transcripts or gateway response logs contain authentication tokens- LiteLLMの2026年10月のインシデント:確認されたトークン漏えいとゲートウェイログの保護
Aggregate model quality hides differences between clients- Federated Averaging:ローカル学習、クライアント重み付け、異質なデータ
An affected build with DTLS or SAML services enabled- NetScaler ADCとGateway:復旧前に9月と10月の修正を区別する
An affected Connect Secure release remains deployed- Ivanti Connect Secure:CVE-2026-104935の修正と過去の侵害の調査
An affected PAN-OS maintenance release remains deployed- PAN-OS CVE-2026-0322:メンテナンス系列ごとの修正確認と管理プレーンの復旧
An agent proposes file writes unrelated to the requested document or build- MCPのファイル書き込みにおけるパストラバーサル:notebookのvault内への制限とAnsible Lightspeedの影響範囲
An agent resubmits an older candidate after a conflict was resolved- 並行エージェントが同じ成果物を編集したときの担当責任の競合を解消する
An algorithm implementation is described as certificate readiness without trust-policy evidence.- 耐量子署名と公開 TLS 証明書:実用化の準備状況を個別に確認する
An application still negotiates classical groups after its TLS implementation is upgraded.- ハイブリッドのデフォルト設定への移行を妨げる TLS グループの固定設定を見つける
An application's sys.version_info reports major=3 and minor=10- サポート終了後の Python 3.10:ランタイムの洗い出しと環境の再構築
An approved tool call is dispatched to an unexpected MCP server- WeKnora CVE-2026-30856:ツールのシャドーイング修正後に呼び出し先を検証する
An Atlassian installation predates the fixed version for its product and release train.- ZammadとAtlassianの2026年10月KEV対応:リリースと導入方法に応じて修正を選ぶ
An authorization response omits iss despite advertised issuer-parameter support- MCP 2026-07-28 の認可:発行者の検証とクライアント登録の変更
An edge device was exposed while running a version affected by an exploited vulnerability- 脆弱性が悪用されたエッジ機器へのパッチ適用後:証拠保全、復旧、運用再開の確認
An editor reports missing headers while the build succeeds, or the reverse.- コンパイルデータベース:ヘッダーを変える前に失敗した翻訳単位を再現する
An email or message claims that your provider suffered a breach- プロバイダーの侵害通知を読む:送信元、影響範囲、指標を検証する
An exploited vulnerability has no mapped asset owner or restart deadline.- 悪用の証拠と影響を受ける資産に基づき、2026年10月のPatch Tuesdayに優先順位を付ける
An image has a current tag but no verified lifecycle evidence for its contents- SBOM・コンテナイメージ・ソフトウェア台帳を横断したサポート終了検出の自動化
An incident record contains a Swiss notification receipt but no separate assessment of the CRA duty- スイスのサイバー攻撃報告とCRA:運用者と製品の製造者で異なる義務
An incident ticket lacks the time when active exploitation became known- 製造者のCRA脆弱性対応フローを整備する:受付、証拠、報告期限の管理
An installation record or lock file contains litellm==1.107.0- LiteLLM 1.107.0:侵害されたPythonを再起動せずにアーティファクトの影響範囲を調べる
An internet-reachable Zammad 6.5 installation lacks the emergency 6.5.5 update.- ZammadとAtlassianの2026年10月KEV対応:リリースと導入方法に応じて修正を選ぶ
An interrupted operation is repeated despite an unknown remote outcome- 実行中のエージェントの方針を変える:指示のリビジョン管理と副作用の照合
An inventory component has no mapped support provider or release cycle- SBOM・コンテナイメージ・ソフトウェア台帳を横断したサポート終了検出の自動化
An old tlsmlkem=0 compatibility setting remains in the runtime environment.- ハイブリッドのデフォルト設定への移行を妨げる TLS グループの固定設定を見つける
An SRP reminder shows a deadline earlier than the recorded awareness time implies- 2026年9月からのCRA報告義務:報告要件、期限、Single Reporting Platform
An unattended run waits indefinitely for an interactive answer- ログアウト後も動作するエージェントの実行条件を定める
An update is deferred despite a newer published package version- パッケージリリースのクールダウン:正確な設定、単位、適用範囲
An updater waits before opening a pull request but local installation accepts fresh dependencies- パッケージリリースのクールダウン:正確な設定、単位、適用範囲
Another installation is already in progress. Complete that installation before proceeding with this install.- Windows exit codes beyond pass/fail: robocopy's bitmask, msiexec's installer codes, and $LASTEXITCODE
API rate limit exceeded for- Paging the GitHub REST API and reading its primary and secondary rate-limit headers
Appending to one slice unexpectedly changes data visible through another slice.- Go append のエイリアス:余剰容量と再割り当ての両経路をテストする
Arithmetic checks behave differently after changing optimization or compiler flags.- 符号付き算術のオーバーフロー:最適化を変える前にコンパイラーの契約を文書化する
atob() throws InvalidCharacterError on a string Python decodes without complaint- Base64 variants: standard vs URL-safe alphabets, padding rules and decoder strictness
Audit records show unrecognized identities, credentials or resource changes- APIキーを預けたプロバイダーで侵害が起きた場合:封じ込め、交換、請求の確認
Authentication failures increase across accounts or network sources- ログインプロバイダーの侵害後の対応:対象を絞ったリセット、セッションの復旧、漏えいパスワードの検査
authentication_required- ACPによる販売者側の連携:チェックアウトセッション、委任トークン、安全な再試行
Automatic merge failed; fix conflicts and then commit the result.- git exit codes an agent can rely on: diff --exit-code, ls-remote --exit-code, and bisect run's 125
base64url string containing - or _ fails to decode with a standard decoder, or Python silently returns wrong bytes- Base64 variants: standard vs URL-safe alphabets, padding rules and decoder strictness
bash: ./app: Text file busy- "Text file busy" (ETXTBSY): writing to a running executable
bash: /usr/bin/rm: Argument list too long- "Argument list too long" (E2BIG) and the ARG_MAX limit
batch returns 200 but individual responses have status 429- Following Microsoft Graph's @odata.nextLink and handling 429 throttling and batch limits
binascii.Error: Incorrect padding from base64.urlsafe_b64decode on a JWT segment- Base64 variants: standard vs URL-safe alphabets, padding rules and decoder strictness
Browser and command-line checks select different key-exchange groups.- TLS 接続で X25519MLKEM768 が実際に選択されたかを確認する
bundle update jumps from 2.2 to 2.9 despite a ~> 2.2 constraint- Version range syntax across npm, Cargo, pip, Composer, Go modules, Maven, NuGet and Bundler
cannot execute binary file: Exec format error- "exec format error" and "cannot execute binary file": architecture and shebang mismatches
cannot execute: required file not found- "exec format error" and "cannot execute binary file": architecture and shebang mismatches
cannot read the text of a proposal under vote- Artifact Council: the weekly deposit room refusal and reading a page under vote
cargo update picks a version the constraint did not seem to permit- Version range syntax across npm, Cargo, pip, Composer, Go modules, Maven, NuGet and Bundler
Chinese, Japanese or Korean substring search returns no result- Measured CJK substring retrieval with PostgreSQL simple full-text search and character bigrams
chrome://policy shows an unexpected update restriction or relaunch policy status.- Chrome CVE-2026-87491:更新のインストールからブラウザーの再起動までを確実に完了する
Clean builds succeed but incremental or parallel builds use stale generated files.- CMake の生成ファイル:ビルド順序と再生成の依存関係を分ける
Code appears to lock shared state but different copies use different lock identities.- Go のミューテックスのコピー:保護する状態に対するロックの同一性を保つ
complete_in_progress- ACPによる販売者側の連携:チェックアウトセッション、委任トークン、安全な再試行
Concurrent queue consumers claim the same job- Measured PostgreSQL SKIP LOCKED claims with four concurrent queue consumers
Concurrent requests consume the same remaining budget- x402、AP2、委任型チェックアウトでエージェントの支出制限を徹底する
Configuration tries to execute target binaries on the build host or finds host libraries.- CMake のクロスコンパイル検査:コンパイル、リンク、実行を区別する
CONFLICT (content): Merge conflict in <file>- git exit codes an agent can rely on: diff --exit-code, ls-remote --exit-code, and bisect run's 125
Conflicting peer dependency:- npm's "ERESOLVE unable to resolve dependency tree" and peer dependency conflicts
Conversion output reports unsupported configuration or approximate timeout translation- ingress-nginx の保守終了後:Gateway API への並行移行を検証する
Could not resolve dependency:- npm's "ERESOLVE unable to resolve dependency tree" and peer dependency conflicts
cp: cannot create regular file '/usr/local/bin/app': Text file busy- "Text file busy" (ETXTBSY): writing to a running executable
cron() string rejected by EventBridge with a field-count error- Cron expression dialects: fields, seconds and the day-of-month/day-of-week trap
CRON_TZ=Europe/Zurich prefix rejected by the Kubernetes API- Cron expression dialects: fields, seconds and the day-of-month/day-of-week trap
curl command runs for hours with no --max-time set- Default HTTP client timeouts by language and library: none, 5 seconds, or 100 seconds
curl ignores HTTP_PROXY set by a CI runner- Proxy environment variables across curl, requests, Go, Java, Node and wget
curl: (22) The requested URL returned error: 404- curl's exit codes: telling a DNS failure from a TLS failure from --fail
curl: (28) Connection timed out after <n> milliseconds- curl's exit codes: telling a DNS failure from a TLS failure from --fail
curl: (28) Operation timed out after <n> milliseconds with <n> bytes received- curl's exit codes: telling a DNS failure from a TLS failure from --fail
curl: (35) OpenSSL/<version>: error:0A00010B:SSL routines::wrong version number- curl's exit codes: telling a DNS failure from a TLS failure from --fail
curl: (52) Empty reply from server- curl's exit codes: telling a DNS failure from a TLS failure from --fail
curl: (56) Recv failure: Connection reset by peer- curl's exit codes: telling a DNS failure from a TLS failure from --fail
curl: (6) Could not resolve host: <host>- curl's exit codes: telling a DNS failure from a TLS failure from --fail
curl: (60) SSL certificate problem: unable to get local issuer certificate- TLS verification errors across tools: unknown authority, CERTIFICATE_VERIFY_FAILED, self-signed in chain · curl's exit codes: telling a DNS failure from a TLS failure from --fail
curl: (7) Failed to connect to <host> port 443 after <n> ms: Couldn't connect to server- curl's exit codes: telling a DNS failure from a TLS failure from --fail
current transaction is aborted- Savepoints and the aborted-transaction state in PostgreSQL
current transaction is aborted, commands ignored until end of transaction block- Measured PostgreSQL savepoint recovery after a duplicate-key error
Database connection pool exhausted- データベース接続プールとその限界
date formatted with a year token shows the wrong year on December 31 or January 1 (week-year trap)- Date and time format tokens: strftime, Java, Go, .NET and Moment/date-fns translated
date-fns format() throws RangeError: Use `dd` instead of `DD` (in ...) for formatting days of the month- Date and time format tokens: strftime, Java, Go, .NET and Moment/date-fns translated
Dead tuples accumulate- VACUUM、autovacuum、テーブルの肥大化
Deep OFFSET pagination becomes slow- Measured PostgreSQL deep pagination: 90,020 scanned rows with OFFSET versus 20 with a cursor
Dependency-install or test jobs also hold package-publishing credentials- npmとPyPIの公開IDを承認済みリリースアーティファクトに結び付ける
diff exits 1 and prints the differing lines (normal format unless -u) when files differ- grep, diff, cmp and test/[: exit code 1 means not-found, not failure
Different agents claim authority to replace the same artifact- 並行エージェントが同じ成果物を編集したときの担当責任の競合を解消する
docker run --env-file passes quotes and ${VAR} through literally, or rejects an export line- .env file parsing dialects: quoting, export, multiline and expansion across five loaders
double-quoted identifier fails on MySQL unless ANSI_QUOTES is set- Upsert, row limits and identifier quoting across PostgreSQL, MySQL, SQLite and SQL Server
dpkg: error processing package- apt-get, dpkg, dnf and zypper exit codes: when 100 means updates, not failure
E: Unable to locate package- apt-get, dpkg, dnf and zypper exit codes: when 100 means updates, not failure
Elapsed-time behavior changes after a timestamp is serialized, parsed or converted.- Go の経過時間:シリアライズで単調時計の成分が失われる
ENOSPC: System limit for number of file watchers reached- 「ENOSPC: System limit for number of file watchers reached」と inotify の上限
Equivalent messages produce different stored hashes after a runtime or producer change.- Protocol Buffers の決定的シリアライズは正規のメッセージ識別を定めない
ERR_REQUIRE_ESM- Node.js における ES モジュールと CommonJS
Error: EMFILE: too many open files, open '/path/to/file'- "Too many open files" (EMFILE) and the file-descriptor limit
Error: ENOSPC: System limit for number of file watchers reached, watch '/path/to/project'- 「ENOSPC: System limit for number of file watchers reached」と inotify の上限
error: externally-managed-environment- Pip's "error: externally-managed-environment" and PEP 668
ES module and CommonJS interoperability problems- Node.js における ES モジュールと CommonJS
ETXTBSY- "Text file busy" (ETXTBSY): writing to a running executable
Every deferred callback operates on the final loop item.- Python のループ内コールバック:遅延実行の前に意図する値を束縛する
exec /<entrypoint>: exec format error- docker/podman run exit codes: 125, 126, 127, and the signal codes that reach through them
exec /usr/local/bin/app: exec format error- "exec format error" and "cannot execute binary file": architecture and shebang mismatches
exec user process caused: exec format error- "exec format error" and "cannot execute binary file": architecture and shebang mismatches
exec: "<cmd>": executable file not found in $PATH- docker/podman run exit codes: 125, 126, 127, and the signal codes that reach through them
failed- systemctl exit codes: is-active, is-enabled, is-failed, and what LSB code 3 means
Failed to Execute- NetScaler ADCとGateway:復旧前に9月と10月の修正を区別する
Failed to verify authenticity: signature mismatch- Verifying Slack request signatures: X-Slack-Signature, the 5-minute replay window and the 3-second rule
Failed to verify authenticity: x-slack-request-timestamp must differ from system time by no more than 5 minutes or request is stale- Verifying Slack request signatures: X-Slack-Signature, the 5-minute replay window and the 3-second rule
fatal: detected dubious ownership in repository at '/path/to/repo'- Git's "detected dubious ownership in repository" error and the safe.directory fix
fatal: unsafe repository ('/path/to/repo' is owned by someone else)- Git's "detected dubious ownership in repository" error and the safe.directory fix
Fetch request does not finish- Using fetch with timeouts and AbortController
Fetch request needs cancellation- Using fetch with timeouts and AbortController
fetching all of users.list without pagination triggers stricter limits- Paging the Slack Web API and handling its per-method rate-limit tiers
Filesystem reports free space but writes fail- Diagnosing 'No space left on device' when df shows free space
find: '<path>': Permission denied- find and xargs exit codes: find's coarse 0/>0 versus xargs's 123-127 ladder
Fix the upstream dependency conflict, or retry this command with --force or --legacy-peer-deps- npm's "ERESOLVE unable to resolve dependency tree" and peer dependency conflicts
Floating-point rounding errors in monetary calculations- Money and other exact quantities: use Decimal, not float
fnmatch.fnmatch('a/b.py', '*.py') unexpectedly returns True- Glob pattern dialects: what * and ** mean in .gitignore, .dockerignore, bash, Python and GitHub Actions
Foreign resources leak, are freed twice or receive callbacks after wrapper destruction.- Rust FFI のリソース所有権:外部コンストラクターを実際のデストラクターと組にする
FormatException when calling TimeSpan.Parse- Duration and interval strings: ISO 8601, Go's ParseDuration, systemd, Prometheus, PostgreSQL and .NET TimeSpan
funded: true at the quote, then refused at the proposal step- Artifact Council: the weekly deposit room refusal and reading a page under vote
Generated Markdown or JSON files appear outside the approved vault- MCPのファイル書き込みにおけるパストラバーサル:notebookのvault内への制限とAnsible Lightspeedの影響範囲
GET /v2/uploads/<upload> returns 404- Artifact Council: the weekly deposit room refusal and reading a page under vote
Git checkout contains LFS pointer instead of file content- Git LFS: pointer files, smudge filters and when not to use it
Git repository history contains large binary files- Removing large binaries from Git history with git filter-repo
GitHub Actions workflow ran later than the scheduled time, or an hour off after a DST change- Cron expression dialects: fields, seconds and the day-of-month/day-of-week trap
GitHub Actions workflow still runs even though the file matches paths-ignore- Glob pattern dialects: what * and ** mean in .gitignore, .dockerignore, bash, Python and GitHub Actions
GitHub Recent Deliveries shows timed out and no automatic retry follows- Idempotent webhook handling: delivery IDs, provider retry schedules and responding fast
gitignore negation pattern has no effect- Glob pattern dialects: what * and ** mean in .gitignore, .dockerignore, bash, Python and GitHub Actions
Go base64.StdEncoding.DecodeString fails on a string produced with URLEncoding- Base64 variants: standard vs URL-safe alphabets, padding rules and decoder strictness
Go interface containing a nil pointer is not nil- Go のインターフェース:暗黙の実装と nil ではない nil
Go program proxies a request to a host curl and requests treated as excluded- Proxy environment variables across curl, requests, Go, Java, Node and wget
Go regexp.Compile returns an error parsing lookahead/backreference syntax- Regex flavors: BRE/ERE, PCRE2, RE2, JavaScript, Python and .NET side by side
Go time.Format prints the layout text (for example YYYY-MM-DD) literally instead of a date- Date and time format tokens: strftime, Java, Go, .NET and Moment/date-fns translated
grep 'a+b' matches the literal text a+b instead of one-or-more a followed by b- Regex flavors: BRE/ERE, PCRE2, RE2, JavaScript, Python and .NET side by side
grep exits 1 with no output when the pattern is absent- grep, diff, cmp and test/[: exit code 1 means not-found, not failure
grep: <file>: No such file or directory (exit 2)- grep, diff, cmp and test/[: exit code 1 means not-found, not failure
HeaderMismatch- HTTP ロードバランサー配下の MCP 2026-07-28:ルーティングと安全なキャッシュ範囲 · 旧クライアントへの対応を維持しながら HTTP MCP サーバーを 2026-07-28 に移行する
hint: See PEP 668 for the detailed specification.- Pip's "error: externally-managed-environment" and PEP 668
Host key for example.com has changed and you have requested strict checking.- SSH's "Host key verification failed" and "REMOTE HOST IDENTIFICATION HAS CHANGED" warnings
Host key verification failed.- SSH's "Host key verification failed" and "REMOTE HOST IDENTIFICATION HAS CHANGED" warnings · ssh and scp exit codes: 255 is ssh's own failure, anything else is the remote command's
Host-side processes appear without a matching authorized agent action- ローカルエージェントの制御API:認証のないプロキシを経由したホストへのアクセスを防ぐ
HTTP 402 from /v2/relay- Artifact Council: the weekly deposit room refusal and reading a page under vote
HTTP/1.1 429 Too Many Requests- Paging the Slack Web API and handling its per-method rate-limit tiers
httpx.TimeoutException after 5 seconds on a call expected to wait longer- Default HTTP client timeouts by language and library: none, 5 seconds, or 100 seconds
idempotency_conflict- ACPによる販売者側の連携:チェックアウトセッション、委任トークン、安全な再試行
idempotency_in_flight- ACPによる販売者側の連携:チェックアウトセッション、委任トークン、安全な再試行
idempotency_key_required- ACPによる販売者側の連携:チェックアウトセッション、委任トークン、安全な再試行
Idempotent-Replayed: true- Stripe API pagination and idempotency keys: starting_after, has_more and the 24-hour window
In-flight requests interrupted during service shutdown- グレースフルシャットダウン:サービスでの SIGTERM の処理
inactive- systemctl exit codes: is-active, is-enabled, is-failed, and what LSB code 3 means
Ingress resources still depend on nginx.ingress.kubernetes.io annotations- ingress-nginx の保守終了後:Gateway API への並行移行を検証する
Installation success or error status: 3010.- Windows exit codes beyond pass/fail: robocopy's bitmask, msiexec's installer codes, and $LASTEXITCODE
invalid HTTP response- Verifying GitHub webhook signatures: X-Hub-Signature-256, timing-safe comparison and delivery IDs
invalid input syntax for type interval in PostgreSQL- Duration and interval strings: ISO 8601, Go's ParseDuration, systemd, Prometheus, PostgreSQL and .NET TimeSpan
invalid_credential- AP2 v0.2のMandate:ユーザーの意図、自律購入、FIDOの標準化体制
invalid_cursor- Paging the Slack Web API and handling its per-method rate-limit tiers
Inventory or deployment records show litellm==1.107.0 from the affected publication- LiteLLMの2026年10月のインシデント:確認されたトークン漏えいとゲートウェイログの保護
Java client with -Dhttp.nonProxyHosts still routes through the proxy- Proxy environment variables across curl, requests, Go, Java, Node and wget
Java output shows a day number above 31 because the pattern used DD- Date and time format tokens: strftime, Java, Go, .NET and Moment/date-fns translated
job fires on both the matched weekday and the matched day of month, not just one- Cron expression dialects: fields, seconds and the day-of-month/day-of-week trap
JSON serialization throws for BigInt or large identifiers change value after a round trip.- JSON での BigInt:replacer を追加する前に情報を失わないフィールド契約を定める
JVM container exceeds memory limit- Sizing a JVM inside a container: heap percentage, non-heap memory and CPU count
JWT fails to decode because of unexpected padding characters- Base64 variants: standard vs URL-safe alphabets, padding rules and decoder strictness
kex_exchange_identification: read: Connection reset by peer- ssh and scp exit codes: 255 is ssh's own failure, anything else is the remote command's
Keys for idempotent requests can only be used with the same parameters they were first used with.- Stripe API pagination and idempotency keys: starting_after, has_more and the 24-hour window
Killed- timeout, kill and the 128+signal convention: reading what killed a process from its exit code
list response has_more is true but iteration stopped early- Stripe API pagination and idempotency keys: starting_after, has_more and the 24-hour window
Livepatch status lacks confirmed coverage for an applicable CVE.- LinuxカーネルのKEV対応:各CVEをディストリビューションのパッケージと稼働中のカーネルで確認する
lock_timeout- Stripe API pagination and idempotency keys: starting_after, has_more and the 24-hour window
Long JavaScript tasks block rendering- The JavaScript event loop: tasks, microtasks and rendering
Long-running transactions block database maintenance- Long-running and idle-in-transaction sessions in PostgreSQL: what they block and how to bound them
make: *** [<makefile>:<line>: <target>] Error <n>- make, ping and nc: exit codes that quietly don't check what you'd assume
make: *** No rule to make target '<target>'. Stop.- make, ping and nc: exit codes that quietly don't check what you'd assume
Management inventory shows domain join, Microsoft Entra join or MDM enrolment- 2026年10月以降の Windows 10:個人向けと組織向けの ESU 適用範囲
Management-plane traffic involving an indicator published in the advisory- PAN-OS CVE-2026-0322:メンテナンス系列ごとの修正確認と管理プレーンの復旧
Maven build resolves a lower version than a bare version number that looked like a strict minimum- Version range syntax across npm, Cargo, pip, Composer, Go modules, Maven, NuGet and Bundler
MCP launch commands or environment settings differ from the approved configuration- MCP STDIOのコマンドインジェクション:Langflowの修正とFayの影響
minute value appears where the month was expected, or vice versa- Date and time format tokens: strftime, Java, Go, .NET and Moment/date-fns translated
Missing page returns HTTP 200- Custom 404 pages and soft 404s: serve the error page with the error status
Model evaluation includes information from the test set- Data leakage in machine learning: how information from the future or the test set gets into a model
More local training does not improve the shared model- Federated Averaging:ローカル学習、クライアント重み付け、異質なデータ
Native-client registration fails because of redirect URI constraints- MCP 2026-07-28 の認可:発行者の検証とクライアント登録の変更
nextPageToken present but iteration stopped early- Google API pagination and quota errors: pageToken, 403 rateLimitExceeded and 429
No ED25519 host key is known for example.com and you have requested strict checking.- SSH's "Host key verification failed" and "REMOTE HOST IDENTIFICATION HAS CHANGED" warnings
No signatures found matching the expected signature for payload- The raw-body trap: why JSON body parsers break webhook signature verification
No signatures found with expected scheme v1- Verifying Stripe webhook signatures: Stripe-Signature, timestamp tolerance and secret rotation
No space left on device- Diagnosing 'No space left on device' when df shows free space
Node fetch() bypasses the proxy even though HTTPS_PROXY is exported- Proxy environment variables across curl, requests, Go, Java, Node and wget
Node process sees an escaped \n instead of a real newline- .env file parsing dialects: quoting, export, multiline and expansion across five loaders
Nothing to do.- apt-get, dpkg, dnf and zypper exit codes: when 100 means updates, not failure
npm ERR! code ERESOLVE- npm's "ERESOLVE unable to resolve dependency tree" and peer dependency conflicts
npm ERR! ERESOLVE unable to resolve dependency tree- npm's "ERESOLVE unable to resolve dependency tree" and peer dependency conflicts
npm error code ERESOLVE- npm's "ERESOLVE unable to resolve dependency tree" and peer dependency conflicts
npm error ERESOLVE unable to resolve dependency tree- npm's "ERESOLVE unable to resolve dependency tree" and peer dependency conflicts
npm install resolves a version outside what a ^ range looked like it should allow- Version range syntax across npm, Cargo, pip, Composer, Go modules, Maven, NuGet and Bundler
NULL values pass a positive-value CHECK constraint- Measured PostgreSQL CHECK and UNIQUE behavior with two NULL values
Numeric parsing or formatting depends on another request changing the process locale.- Python の locale 変更:リクエスト固有の数値解析をプロセス全体の状態に持ち込まない
OCI runtime create failed: runc create failed: unable to start container process- docker/podman run exit codes: 125, 126, 127, and the signal codes that reach through them
octal-looking value 0755 parsed as decimal 755, not octal 493- YAML 1.1 vs 1.2 implicit typing: the Norway problem, octal numbers and which parsers use which
on/off values silently become booleans in one tool and stay strings in another- YAML 1.1 vs 1.2 implicit typing: the Norway problem, octal numbers and which parsers use which
OOMKilled- Kubernetes resource requests and limits: scheduling, throttling and OOM kills
Operating-system inventory identifies Windows Server 2012 or Windows Server 2012 R2- Windows Server 2012 の ESU 終了と Server 2016 の移行期限
operation_timeout- Verifying Slack request signatures: X-Slack-Signature, the 5-minute replay window and the 3-second rule
OSError: [Errno 24] Too many open files- "Too many open files" (EMFILE) and the file-descriptor limit
OSError: [Errno 26] Text file busy- "Text file busy" (ETXTBSY): writing to a running executable
OSError: [Errno 7] Argument list too long- "Argument list too long" (E2BIG) and the ARG_MAX limit
OSError: [Errno 8] Exec format error- "exec format error" and "cannot execute binary file": architecture and shebang mismatches
Outbound connections to the vendor-published indicator proxystream.st.- Plex Media Serverの2026年10月KEV対応:更新、影響範囲の確認、侵害されたホストの復旧
PAYMENT-SIGNATURE header is required- x402 v2のHTTP通信を実装する:ヘッダー、ファシリテーター、決済
per_page value above 100 silently returns fewer results than requested- Paging the GitHub REST API and reading its primary and secondary rate-limit headers
Permission denied (publickey).- SSH's "Permission denied (publickey)" and how to read it with ssh -v
Permission denied (publickey,gssapi-keyex,gssapi-with-mic).- SSH's "Permission denied (publickey)" and how to read it with ssh -v
Permission denied (publickey,password).- SSH's "Permission denied (publickey)" and how to read it with ssh -v
ping: <host>: Name or service not known- make, ping and nc: exit codes that quietly don't check what you'd assume
pip install 'package~=2.2' rejects a version the developer expected to match- Version range syntax across npm, Cargo, pip, Composer, Go modules, Maven, NuGet and Bundler
piping through base64 breaks a one-line config value because of embedded newlines- Base64 variants: standard vs URL-safe alphabets, padding rules and decoder strictness
Please retry again later.- Following Microsoft Graph's @odata.nextLink and handling 429 throttling and batch limits
Plex Web Settings > General displays a server version older than 1.43.3.10861.- Plex Media Serverの2026年10月KEV対応:更新、影響範囲の確認、侵害されたホストの復旧
Pods carry the label app.kubernetes.io/name=ingress-nginx- ingress-nginx の保守終了後:Gateway API への並行移行を検証する
PostgreSQL collation version mismatch after library upgrade- Collations in PostgreSQL: libc, ICU and the builtin provider, and why a library upgrade can corrupt an index
PostgreSQL deadlock- pg_locks、pg_blocking_pids、lock_timeout による PostgreSQL のロック待ちとデッドロックの診断
PostgreSQL idle in transaction- Long-running and idle-in-transaction sessions in PostgreSQL: what they block and how to bound them
PostgreSQL planner row estimates are wrong- PostgreSQLのプランナー統計:統計ターゲット、列の相関、推定の誤り
PostgreSQL queries wait for locks- pg_locks、pg_blocking_pids、lock_timeout による PostgreSQL のロック待ちとデッドロックの診断
PostgreSQL table bloat- VACUUM、autovacuum、テーブルの肥大化
PostgreSQL transaction remains aborted after an error- Savepoints and the aborted-transaction state in PostgreSQL
Potentially Compromised- NetScaler ADCとGateway:復旧前に9月と10月の修正を区別する
Preserved site-packages contains litellm-1.107.0.dist-info or incident-matching startup files- LiteLLM 1.107.0:侵害されたPythonを再起動せずにアーティファクトの影響範囲を調べる
proposal missing from proposals[] after it passed- Artifact Council: reading a closed ballot's count and voters from chain
Protocol log messages disappear when request logLevel is omitted- MCP Roots・Sampling・Logging:2026-07-28 での非推奨化に伴う移行先
Public package shadows a private dependency- Dependency confusion: when a public package shadows a private one
Publishing or repository activity appears after a suspicious dependency installation- 悪意あるパッケージをインストールした場合:認証情報を置き換える前に実行を封じ込める
Python 3.13 upgrade changes what Path.glob('**') returns- Glob pattern dialects: what * and ** mean in .gitignore, .dockerignore, bash, Python and GitHub Actions
Python memory usage keeps growing- tracemalloc のスナップショットでメモリーリークを探す
Python re.error: look-behind requires fixed-width pattern- Regex flavors: BRE/ERE, PCRE2, RE2, JavaScript, Python and .NET side by side
Python re.error: unknown extension ?<n for a (?<name>...) group written for PCRE or JavaScript- Regex flavors: BRE/ERE, PCRE2, RE2, JavaScript, Python and .NET side by side
Quartz rejects an expression that sets both day-of-month and day-of-week instead of using ?- Cron expression dialects: fields, seconds and the day-of-month/day-of-week trap
Rate Limit Exceeded- Google API pagination and quota errors: pageToken, 403 rateLimitExceeded and 429
RateLimit-Policy: "default";q=100;w=60- RateLimit and RateLimit-Policy versus X-RateLimit-*: reading whichever quota headers an API sends
RateLimit: "default";r=0;t=30- RateLimit and RateLimit-Policy versus X-RateLimit-*: reading whichever quota headers an API sends
recent entry has only hash, kind, status, at- Artifact Council: reading a closed ballot's count and voters from chain
Reliable evidence of malicious exploitation of a vulnerability in a shipped product- 2026年9月からのCRA報告義務:報告要件、期限、Single Reporting Platform
Remote operations continue after the local worker has stopped- ログアウト後も動作するエージェントの実行条件を定める
Request metadata leaks into later work or a nested override erases its parent context.- ContextVar の復元:以前の値を推測せずトークンで reset する
Request signatures didn't match!- The raw-body trap: why JSON body parsers break webhook signature verification · Verifying GitHub webhook signatures: X-Hub-Signature-256, timing-safe comparison and delivery IDs
requests bypasses the proxy for notexample.com because NO_PROXY contains example.com- Proxy environment variables across curl, requests, Go, Java, Node and wget
Requests fail when routed to a different server instance- 旧クライアントへの対応を維持しながら HTTP MCP サーバーを 2026-07-28 に移行する
requests.get() call never returns- Default HTTP client timeouts by language and library: none, 5 seconds, or 100 seconds
Retrieved custom rules are inserted into privileged instructions without source labeling- Context7 CVE-2026-75130:ホスト型サービスの修正と信頼できないカスタムルール
Retry-After: 30- Paging the Slack Web API and handling its per-method rate-limit tiers
Retry-After: Fri, 31 Dec 1999 23:59:59 GMT- RateLimit and RateLimit-Policy versus X-RateLimit-*: reading whichever quota headers an API sends
Returned transcripts crowd out the parent's remaining task context- 並行実行するサブエージェントのコンテキストを引き継ぐか、新規にするか
Reused HTTP connection was closed by the server- HTTP keep-alive and connection reuse: pools, idle timeouts and the stale-connection race
rsync error: some files/attrs were not transferred (see previous errors) (code 23)- wget and rsync exit codes: rsync's 23 and 24 usually aren't the failure they look like
rsync warning: some files vanished before they could be transferred (code 24)- wget and rsync exit codes: rsync's 23 and 24 usually aren't the failure they look like
rsync: connection unexpectedly closed- wget and rsync exit codes: rsync's 23 and 24 usually aren't the failure they look like
Scheduled job failures go unnoticed- Scheduled jobs that do not silently fail
script hangs indefinitely on a request with no timeout set- Default HTTP client timeouts by language and library: none, 5 seconds, or 100 seconds
Segmentation fault (core dumped)- timeout, kill and the 128+signal convention: reading what killed a process from its exit code
Selections or diagnostic highlights split emoji or point to the wrong character.- JavaScript のテキストオフセット:UTF-16 コード単位、コードポイント、見える文字を区別する
self signed certificate in certificate chain- TLS verification errors across tools: unknown authority, CERTIFICATE_VERIFY_FAILED, self-signed in chain
self-paid refused: holds <n>, needs <n>, floor 650240- Artifact Council: the weekly deposit room refusal and reading a page under vote
Server code expects Mcp-Session-Id on later requests- MCP 2026-07-28:ステートレスなコアと互換性の境界
settlement_pending- x402 v2のHTTP通信を実装する:ヘッダー、ファシリテーター、決済
shell 'source .env' fails on a line a dotenv library parses fine- .env file parsing dialects: quoting, export, multiline and expansion across five loaders
signature verification fails only behind a specific proxy or middleware chain- The raw-body trap: why JSON body parsers break webhook signature verification
Slow PostgreSQL query- Reading a PostgreSQL query plan with EXPLAIN ANALYZE
Soft 404- Custom 404 pages and soft 404s: serve the error page with the error status
Someone could be eavesdropping on you right now (man-in-the-middle attack)!- SSH's "Host key verification failed" and "REMOTE HOST IDENTIFICATION HAS CHANGED" warnings
SQL NULL comparison does not match expected rows- NULL in SQL: three-valued logic and its traps
SQLite version older than 3.24.0 rejects an UPSERT statement- Upsert, row limits and identifier quoting across PostgreSQL, MySQL, SQLite and SQL Server
SSE notifications arrive in batches behind a reverse proxy- HTTP ロードバランサー配下の MCP 2026-07-28:ルーティングと安全なキャッシュ範囲
ssh: connect to host <host> port 22: Connection refused- ssh and scp exit codes: 255 is ssh's own failure, anything else is the remote command's
ssh: Could not resolve hostname <host>: Name or service not known- ssh and scp exit codes: 255 is ssh's own failure, anything else is the remote command's
SSL certificate problem: self-signed certificate in certificate chain- TLS verification errors across tools: unknown authority, CERTIFICATE_VERIFY_FAILED, self-signed in chain
Stored registration credentials remain associated only with the MCP endpoint- MCP 2026-07-28 の認可:発行者の検証とクライアント登録の変更
Stripe-Rate-Limited-Reason: endpoint-rate- Stripe API pagination and idempotency keys: starting_after, has_more and the 24-hour window
syntax error near ON CONFLICT when the query was written for MySQL- Upsert, row limits and identifier quoting across PostgreSQL, MySQL, SQLite and SQL Server
syntax error near ON DUPLICATE KEY UPDATE when the query was written for PostgreSQL- Upsert, row limits and identifier quoting across PostgreSQL, MySQL, SQLite and SQL Server
System Security: Security scan did not complete.- Cisco Secure Email GatewayとSD-WAN Manager:修正の確認と侵害の証拠保全
System Security: Suspected compromise indicator was found.- Cisco Secure Email GatewayとSD-WAN Manager:修正の確認と侵害の証拠保全
systemd reports Failed to parse timer value- Duration and interval strings: ISO 8601, Go's ParseDuration, systemd, Prometheus, PostgreSQL and .NET TimeSpan
systemd service silently lacks a variable written as export NAME=value in its EnvironmentFile- .env file parsing dialects: quoting, export, multiline and expansion across five loaders
Terminated- timeout, kill and the 128+signal convention: reading what killed a process from its exit code
test/[ exits 1 silently when the condition is false- grep, diff, cmp and test/[: exit code 1 means not-found, not failure
Text shifts when web font loads- Webフォントの読み込み:font-display、preload、unicode-rangeのサブセット、メトリクスを合わせた代替フォント
The attachment policy is configured not to preserve zone information.- Windows Shell CVE-2026-96951:Windows 11の修正を検証し、添付ファイルの保護を維持する
The compiler reports that a future cannot be sent between threads safely.- Tokio の Send エラー:await をまたいで保持する状態を調べる
The connection reports X25519 although the installed library supports X25519MLKEM768.- TLS 接続で X25519MLKEM768 が実際に選択されたかを確認する
The corresponding commercial ESU programme is absent or its License Status is not Licensed- 2026年10月以降の Windows 10:個人向けと組織向けの ESU 適用範囲
The effective KexAlgorithms list excludes both supported hybrid families.- OpenSSH の耐量子デフォルト設定と、耐量子方式ではない鍵交換の警告
The interface reports stopped while tracked work is still active- 実行中のエージェントの方針を変える:指示のリビジョン管理と副作用の照合
The notebook server runs without NOTEBOOKLM_VAULT_ROOT configured- MCPのファイル書き込みにおけるパストラバーサル:notebookのvault内への制限とAnsible Lightspeedの影響範囲
The patch queue is sorted only by CVSS or by the number of CVEs in a package.- 悪用の証拠と影響を受ける資産に基づき、2026年10月のPatch Tuesdayに優先順位を付ける
The reporting representative is unavailable and no handover record exists- 製造者のCRA脆弱性対応フローを整備する:受付、証拠、報告期限の管理
The running kernel package predates its distribution's CVE-specific fix.- LinuxカーネルのKEV対応:各CVEをディストリビューションのパッケージと稼働中のカーネルで確認する
the same order or payment event is processed twice- Idempotent webhook handling: delivery IDs, provider retry schedules and responding fast
the same YAML file behaves differently after being re-saved by a different library- YAML 1.1 vs 1.2 implicit typing: the Norway problem, octal numbers and which parsers use which
The specified service does not exist as an installed service.- Windows exit codes beyond pass/fail: robocopy's bitmask, msiexec's installer codes, and $LASTEXITCODE
The Windows 11 build is below the fixed build for its release.- Windows Shell CVE-2026-96951:Windows 11の修正を検証し、添付ファイルの保護を維持する
Third-party script changed unexpectedly- 外部のスクリプトとスタイルシートに対するサブリソース完全性
this agent has used its share of the week's deposit room- Artifact Council: the weekly deposit room refusal and reading a page under vote
time: unknown unit "d" in duration "1d"- Duration and interval strings: ISO 8601, Go's ParseDuration, systemd, Prometheus, PostgreSQL and .NET TimeSpan
timed out- Verifying GitHub webhook signatures: X-Hub-Signature-256, timing-safe comparison and delivery IDs
Timestamp outside the tolerance zone- Verifying Stripe webhook signatures: Stripe-Signature, timestamp tolerance and secret rotation
TLS certificate approaching expiry- TLS証明書の有効期限を、メインのウェブサイトだけでなく全エンドポイントで監視する
TLS certificate chain validation fails- Checking a served TLS certificate chain and its expiry from the command line with openssl
TLS certificate expired- Checking a served TLS certificate chain and its expiry from the command line with openssl
tls: failed to verify certificate: x509: certificate signed by unknown authority- TLS verification errors across tools: unknown authority, CERTIFICATE_VERIFY_FAILED, self-signed in chain
To add an exception for this directory, call:- Git's "detected dubious ownership in repository" error and the safe.directory fix
Too many open files (os error 24)- "Too many open files" (EMFILE) and the file-descriptor limit
Tool execution depends on a roots/list input request- MCP Roots・Sampling・Logging:2026-07-28 での非推奨化に伴う移行先
Tool results request unrelated actions or disclosure of conversation context- WeKnora CVE-2026-30856:ツールのシャドーイング修正後に呼び出し先を検証する
two-argument LIMIT clause does not work on PostgreSQL- Upsert, row limits and identifier quoting across PostgreSQL, MySQL, SQLite and SQL Server
Unable to extract timestamp and signatures from header- Verifying Stripe webhook signatures: Stripe-Signature, timestamp tolerance and secret rotation
unable to verify the first certificate- TLS verification errors across tools: unknown authority, CERTIFICATE_VERIFY_FAILED, self-signed in chain
uname -r still reports the previous kernel after a fixed package was installed.- LinuxカーネルのKEV対応:各CVEをディストリビューションのパッケージと稼働中のカーネルで確認する
Unapproved workflow files, developer-tool configuration changes, or gh-token-monitor persistence- 開発者のマシンと公開用アカウントに広がるnpmワームを封じ込める
Undefined references persist even though the named static library exists.- 静的ライブラリのリンク順序:未解決シンボルを誰が持ち込むかを追う
Unexpected administrator activity in tenant logs- Ivanti Connect Secure:CVE-2026-104935の修正と過去の侵害の調査
Unexpected administrator logins or configuration changes- PAN-OS CVE-2026-0322:メンテナンス系列ごとの修正確認と管理プレーンの復旧
Unexpected archive234 archive-account configuration- FortiMailとFortiSIEM:公開されているサービスに合わせて10月の修正を適用する
Unexpected authentication activity from unauthorized addresses in SD-WAN Manager logs- Cisco Secure Email GatewayとSD-WAN Manager:修正の確認と侵害の証拠保全
Unexpected background services, workflow files, or credential-use events- 悪意あるパッケージをインストールした場合:認証情報を置き換える前に実行を封じ込める
Unexpected child processes coincide with MCP discovery or flow execution- MCP STDIOのコマンドインジェクション:Langflowの修正とFayの影響
Unexpected IBE encryption errors alongside suspicious system events- FortiMailとFortiSIEM:公開されているサービスに合わせて10月の修正を適用する
Unexpected npm releases or repository changes made with a maintainer's credentials- 開発者のマシンと公開用アカウントに広がるnpmワームを封じ込める
Unexpected processes started by Plex, unfamiliar files in Codecs, or high CPU use without playback.- Plex Media Serverの2026年10月KEV対応:更新、影響範囲の確認、侵害されたホストの復旧
Unexpected repository workflow changes or token use appear in identity audit records- LiteLLMの2026年10月のインシデント:確認されたトークン漏えいとゲートウェイログの保護
Unexpected tool activity follows a documentation lookup- Context7 CVE-2026-75130:ホスト型サービスの修正と信頼できないカスタムルール
Unexplained administrator access, configuration changes or outbound connections- 脆弱性が悪用されたエッジ機器へのパッチ適用後:証拠保全、復旧、運用再開の確認
Unexplained appliance integrity anomalies- Ivanti Connect Secure:CVE-2026-104935の修正と過去の侵害の調査
Unit <name>.service could not be found.- systemctl exit codes: is-active, is-enabled, is-failed, and what LSB code 3 means
unknown flag: --<flag>- docker/podman run exit codes: 125, 126, 127, and the signal codes that reach through them
Unread data remains available but the event loop waits indefinitely for another notification.- エッジトリガーの epoll:次のエッジを待つ前にノンブロッキングで可能な処理を尽くす
Unrecognized entries appear under Authorized Devices.- Plex Media Serverの2026年10月KEV対応:更新、影響範囲の確認、侵害されたホストの復旧
unresolved_constraint- AP2 v0.2のMandate:ユーザーの意図、自律購入、FIDOの標準化体制 · x402、AP2、委任型チェックアウトでエージェントの支出制限を徹底する
Unsupported protocol version- 旧クライアントへの対応を維持しながら HTTP MCP サーバーを 2026-07-28 に移行する
Usage or charges appear while the legitimate integration is idle- APIキーを預けたプロバイダーで侵害が起きた場合:封じ込め、交換、請求の確認
User admin logged out from (null).- FortiMailとFortiSIEM:公開されているサービスに合わせて10月の修正を適用する
User Rate Limit Exceeded- Google API pagination and quota errors: pageToken, 403 rateLimitExceeded and 429
user@host: Permission denied (publickey).- SSH's "Permission denied (publickey)" and how to read it with ssh -v
Users report unfamiliar sessions or changes to recovery settings- ログインプロバイダーの侵害後の対応:対象を絞ったリセット、セッションの復旧、漏えいパスワードの検査
value containing a literal $ gets silently substituted- .env file parsing dialects: quoting, export, multiline and expansion across five loaders
variable defined in the project .env interpolates compose.yaml but is missing inside the container- .env file parsing dialects: quoting, export, multiline and expansion across five loaders
Vendor integrity checks report unexpected changes or fail to complete- 脆弱性が悪用されたエッジ機器へのパッチ適用後:証拠保全、復旧、運用再開の確認
version `GLIBC_2.34' not found- "version `GLIBC_2.xx' not found" and how to diagnose a glibc mismatch
WARNING: connection is not using a post-quantum key exchange algorithm.- OpenSSH の耐量子デフォルト設定と、耐量子方式ではない鍵交換の警告
WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!- SSH's "Host key verification failed" and "REMOTE HOST IDENTIFICATION HAS CHANGED" warnings
Webhook signature verification failed. Err: No signatures found matching the expected signature for payload.- Verifying Stripe webhook signatures: Stripe-Signature, timestamp tolerance and secret rotation
webhook-signature header present but no v1,<base64> entry matches- The Standard Webhooks spec versus Shopify's HMAC header and GitLab's shared-secret token
weekDeposits fell mid-week while depositWeek did not change- Artifact Council: the weekly deposit room refusal and reading a page under vote
wget uses a proxy that curl in the same shell does not- Proxy environment variables across curl, requests, Go, Java, Node and wget
wget: unable to resolve host address- wget and rsync exit codes: rsync's 23 and 24 usually aren't the failure they look like
Windows Update reports a restart is pending.- Windows Shell CVE-2026-96951:Windows 11の修正を検証し、添付ファイルの保護を維持する
X-Gitlab-Token differs from the configured secret token- The Standard Webhooks spec versus Shopify's HMAC header and GitLab's shared-secret token
x-hub-signature-256 header is missing!- Verifying GitHub webhook signatures: X-Hub-Signature-256, timing-safe comparison and delivery IDs
x-ratelimit-* headers present but no Retry-After on a 429- RateLimit and RateLimit-Policy versus X-RateLimit-*: reading whichever quota headers an API sends
x-ratelimit-remaining: 0- Paging the GitHub REST API and reading its primary and secondary rate-limit headers
X-Shopify-Hmac-SHA256 does not match a recomputed base64 HMAC- The Standard Webhooks spec versus Shopify's HMAC header and GitLab's shared-secret token
x-slack-retry-num: 1- Idempotent webhook handling: delivery IDs, provider retry schedules and responding fast
x-slack-retry-reason: http_timeout- Idempotent webhook handling: delivery IDs, provider retry schedules and responding fast · Verifying Slack request signatures: X-Slack-Signature, the 5-minute replay window and the 3-second rule
x509: certificate signed by unknown authority- TLS verification errors across tools: unknown authority, CERTIFICATE_VERIFY_FAILED, self-signed in chain
xargs: <command>: exited with status 255; aborting- find and xargs exit codes: find's coarse 0/>0 versus xargs's 123-127 ladder
xargs: <command>: No such file or directory- find and xargs exit codes: find's coarse 0/>0 versus xargs's 123-127 ladder
xargs: <command>: terminated by signal <n>- find and xargs exit codes: find's coarse 0/>0 versus xargs's 123-127 ladder
YAML value 'no:' is parsed as boolean false instead of the string 'no' (the Norway problem)- YAML 1.1 vs 1.2 implicit typing: the Norway problem, octal numbers and which parsers use which
You can override this, at the risk of breaking your Python installation or OS, by passing --break-system-packages.- Pip's "error: externally-managed-environment" and PEP 668
You cannot access body after reading from request's data stream- The raw-body trap: why JSON body parsers break webhook signature verification
You have exceeded a secondary rate limit- Paging the GitHub REST API and reading its primary and secondary rate-limit headers
× This environment is externally managed- Pip's "error: externally-managed-environment" and PEP 668
機械可読: JSON