NGINX-ngx_http_rewrite_module-heap-buffer-overflow-CVE-2026-9256

CVE-2026-9256 NGINX ngxhttprewritemodule PoC 유도 과정과 고찰 적용 범위: 로컬 실습 환경, 승인된 재현 환경, 취약점 검증 및 보호 규칙 분석에만 사용합니다. 승인되지 않은 대상에는 사용하지 마십시오. 본 문서의 PoC 아이디어는 원격에서 관찰 가능한 NGINX worker crash 동작만 검증하며, RCE, ASLR 우회 또는 안정적인 익스플로잇 체인을 포함하지 않습니다. 1. 취약점 배경 CVE-2026-9256은 NGINX ngxhttprewritemodule의 힙 버퍼 오버플로우...

CVE-2026-9256-Poc

nginx ngxhttprewritemodule Переполнение буфера в куче Описание nginx Plus и nginx Open Source ngxhttprewritemodule содержат уязвимость переполнения буфера в куче. Когда директива rewrite использует регулярное выражение с несколькими перекрывающимися группами захвата PCRE например, ^/.$ и замену,...

CVE-2026-42533

CVE-2026-42533 — nginx 힙 버퍼 오버플로우 PoC 익스플로잇 Two-Pass 캡처 클로버링을 통한 사전 인증 원격 코드 실행 공개 PoC 배포일 2026-07-27 — 기다리지 말고 지금 패치하세요. | ---|--- CVE| CVE-2026-42533 CVSS 4.0| 9.2 치명적 유형| 힙 버퍼 오버플로우 CWE-122 영향받는 버전| nginx 0.9.6 – 1.30.3 stable, 0.9.6 – 1.31.2 mainline 수정 버전| nginx 1.30.4 / 1.31.3, NGINX Plus R...

CLSA-2026-1779282813 Fix CVE(s): CVE-2026-42945

SECURITY UPDATE: heap buffer overflow in ngxhttprewritemodule when an unnamed PCRE capture group with '?' in the replacement is followed by another rewrite, if, or set directive - debian/patches/CVE-2026-42945.patch: clear isargs flag at the start of ngxhttpscriptregexendcode in...

CVE-2020-5243

uap-core before 0.7.3 is vulnerable to a denial of service attack when processing crafted User-Agent strings. Some regexes are vulnerable to regular expression denial of service REDoS due to overlapping capture groups. This allows remote attackers to overload a server by setting the User-Agent...

Babel 安全漏洞

Babel is a compiler for JavaScript in the Babel open source. A security vulnerability exists in Babel versions prior to 7.26.10 and prior to 8.0.0-alpha.17, which stems from a .replace method generated when compiling regular expression named capture groups that has a quadratic complexity on certa...

GHSA-CMCX-XHR8-3W9P Denial of Service in uap-core when processing crafted User-Agent strings

Impact Some regexes are vulnerable to regular expression denial of service REDoS due to overlapping capture groups. This allows remote attackers to overload a server by setting the User-Agent header in an HTTPS request to maliciously crafted long strings. Patches Please update uap-core to gt;=...