48 matches found
CVE-2026-42533
CVE-2026-42533 — nginx ヒープバッファオーバーフロー PoC エクスプロイト 2パスキャプチャ破壊による事前認証リモートコード実行 公開 PoC リリース: 2026-07-27 — 待たずに今すぐパッチを適用してください。 | ---|--- CVE| CVE-2026-42533 CVSS 4.0| 9.2 重大 種別| ヒープバッファオーバーフロー CWE-122 影響を受けるバージョン| nginx 0.9.6 – 1.30.3 stable、0.9.6 – 1.31.2 mainline 修正バージョン| nginx 1.30.4 / 1.31.3、NGI...
CVE-2026-42533
NGINX 脆弱性チェッカー NGINX インストールが CVE-2026-42533 脆弱性の影響を受ける可能性があるかどうかを 非侵襲的 に検証するスクリプト。 重要: このプロジェクトは脆弱性を悪用しません 。インストールされているバージョンとサーバー設定に対してローカルでチェックを実行し、潜在的な露出を特定するだけです。 特徴 NGINX がインストールされているかどうかを検出します。 インストールされているバージョンを取得します。 バージョンを修正済みバージョンと比較します。 map ディレクティブを使用する設定を検索します。 設定ファイル内での正規表現 および...
CentOS Linux 7 [TuxCare] Security Update: nginx / nginx-all-modules / nginx-filesystem / nginx-mod-devel / etc (CENTOS7:CLSA-2026:1785413587)
The CentOS Linux 7 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS7:CLSA-2026:1785413587 advisory. - A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references the map'...
AlmaLinux 9.6 [TuxCare] Security Update: nginx / nginx-all-modules / nginx-core / nginx-filesystem / etc (ALMALINUX9.6:CLSA-2026:1784888515)
The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1784888515 advisory. - A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references the...
Rocky Linux 9.6 [TuxCare] Security Update: nginx / nginx-all-modules / nginx-core / nginx-filesystem / etc (ALMALINUX9.6:CLSA-2026:1784888515)
The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1784888515 advisory. - A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references th...
CentOS Linux 6 [TuxCare] Security Update: nginx / nginx-all-modules / nginx-filesystem / nginx-mod-http-geoip / etc (CENTOS6:CLSA-2026:1784804810)
The CentOS Linux 6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS6:CLSA-2026:1784804810 advisory. - A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references the map'...
CentOS Linux 8 [TuxCare] Security Update: nginx / nginx-all-modules / nginx-filesystem / etc (CENTOS-STREAM8:CLSA-2026:1784800978)
The CentOS Linux 8 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS- STREAM8:CLSA-2026:1784800978 advisory. - A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references...
CentOS Linux 8.4 [TuxCare] Security Update: nginx / nginx-all-modules / nginx-filesystem / etc (CENTOS8.4:CLSA-2026:1784800112)
The CentOS Linux 8.4 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.4:CLSA-2026:1784800112 advisory. - A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references the...
AlmaLinux 9.2 [TuxCare] Security Update: nginx / nginx-all-modules / nginx-core / nginx-filesystem / etc (ALMALINUX9.2:CLSA-2026:1784647630)
The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1784647630 advisory. - A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references the...
nginx-map-risk-audit
CVE-2026-42533: NGINX Map 正規表現リスクレビュー CVE-2026-42533 に関する防御的な調査メモ。NGINX のリクエスト処理におけるヒープバッファオーバーフローで、map ディレクティブの正規表現キャプチャと特定の変数評価パターンに関連しています。 平易に言うと、NGINX は Web サーバーおよびリバースプロキシソフトウェアです。Web サイトや API の前面に配置され、Web リクエストを受け取ってどこに送るかを決定します。map ルールは NGINX の設定機能で、「このリクエスト値が X に一致したら、この変数を Y...
nginx: NGINX: Arbitrary code execution via crafted HTTP requests
A flaw was found in NGINX. An unauthenticated attacker can exploit this vulnerability by sending specially crafted HTTP requests when the map directive uses regular expression regex matching and references regex capture variables before referencing the map output variable. This can lead to a heap...
nginx: NGINX: Arbitrary code execution via crafted HTTP requests
A flaw was found in NGINX. An unauthenticated attacker can exploit this vulnerability by sending specially crafted HTTP requests when the map directive uses regular expression regex matching and references regex capture variables before referencing the map output variable. This can lead to a heap...
nginx: NGINX: Arbitrary code execution via crafted HTTP requests
A flaw was found in NGINX. An unauthenticated attacker can exploit this vulnerability by sending specially crafted HTTP requests when the map directive uses regular expression regex matching and references regex capture variables before referencing the map output variable. This can lead to a heap...
nginx: NGINX: Arbitrary code execution via crafted HTTP requests
A flaw was found in NGINX. An unauthenticated attacker can exploit this vulnerability by sending specially crafted HTTP requests when the map directive uses regular expression regex matching and references regex capture variables before referencing the map output variable. This can lead to a heap...
USN-8563-5 A security issue was fixed in nginx.
USN-8563-1 fixed vulnerabilities in nginx. The fix for CVE-2026-42533 was backed out in USN-8563-2 because it could cause a regression. This update includes a better fix for CVE-2026-42533. We apologize for the inconvenience. Original advisory details: It was discovered that nginx incorrectly...
nginx: NGINX: Arbitrary code execution via crafted HTTP requests
A flaw was found in NGINX. An unauthenticated attacker can exploit this vulnerability by sending specially crafted HTTP requests when the map directive uses regular expression regex matching and references regex capture variables before referencing the map output variable. This can lead to a heap...
openSUSE 16 Security Update : nginx (openSUSE-SU-2026:21524-1)
The remote openSUSE 16 host has packages installed that are affected by a vulnerability as referenced in the openSUSE- SU-2026:21524-1 advisory. This update for nginx fixes the following issue - CVE-2026-42533: map directive and regex matching vulnerability bsc1271514. Tenable has extracted the...
Security update for nginx (important)
openSUSE security update: security update for nginx ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:21524-1 Rating: important References: bsc1271514 Cross-References: CVE-2026-42533 CVSS scores: CVE-2026-42533 SUSE : 8.1...