CLSA-2026-1778869454 Fix CVE(s): CVE-2026-42945

SECURITY UPDATE: Heap buffer overflow in ngxhttprewritemodule via PCRE unnamed captures with question mark in replacement strings - debian/patches/CVE-2026-42945.patch: clear e-isargs in ngxhttpscriptregexendcode to prevent buffer overrun when rewrite directive is followed by set or if with PCRE...

nginx: NGINX: Arbitrary Code Execution Vulnerability

A flaw was found in NGINX, specifically within the ngxhttprewritemodule. An unauthenticated attacker can exploit this vulnerability by sending crafted HTTP requests under specific rewrite configurations. This can lead to a heap buffer overflow in the NGINX worker process, which may result in...

nginx: NGINX: Arbitrary Code Execution Vulnerability

A flaw was found in NGINX, specifically within the ngxhttprewritemodule. An unauthenticated attacker can exploit this vulnerability by sending crafted HTTP requests under specific rewrite configurations. This can lead to a heap buffer overflow in the NGINX worker process, which may result in...

nginx: NGINX: Arbitrary Code Execution Vulnerability

A flaw was found in NGINX, specifically within the ngxhttprewritemodule. An unauthenticated attacker can exploit this vulnerability by sending crafted HTTP requests under specific rewrite configurations. This can lead to a heap buffer overflow in the NGINX worker process, which may result in...

nginx: NGINX: Arbitrary Code Execution Vulnerability

A flaw was found in NGINX, specifically within the ngxhttprewritemodule. An unauthenticated attacker can exploit this vulnerability by sending crafted HTTP requests under specific rewrite configurations. This can lead to a heap buffer overflow in the NGINX worker process, which may result in...

nginx: NGINX: Arbitrary Code Execution Vulnerability

A flaw was found in NGINX, specifically within the ngxhttprewritemodule. An unauthenticated attacker can exploit this vulnerability by sending crafted HTTP requests under specific rewrite configurations. This can lead to a heap buffer overflow in the NGINX worker process, which may result in...

CLSA-2026-1778843906 nginx: Fix of CVE-2026-42945

CVE-2026-42945: fix heap buffer overflow in ngxhttprewritemodule when an unnamed PCRE capture group with '?' in the replacement is followed by another rewrite, if, or set directive; clear stale isargs flag in regex end code to prevent buffer overrun and possible worker crash or code execution...

nginx: NGINX: Arbitrary Code Execution Vulnerability

A flaw was found in NGINX, specifically within the ngxhttprewritemodule. An unauthenticated attacker can exploit this vulnerability by sending crafted HTTP requests under specific rewrite configurations. This can lead to a heap buffer overflow in the NGINX worker process, which may result in...

nginx: NGINX: Arbitrary Code Execution Vulnerability

A flaw was found in NGINX, specifically within the ngxhttprewritemodule. An unauthenticated attacker can exploit this vulnerability by sending crafted HTTP requests under specific rewrite configurations. This can lead to a heap buffer overflow in the NGINX worker process, which may result in...

nginx: NGINX: Arbitrary Code Execution Vulnerability

A flaw was found in NGINX, specifically within the ngxhttprewritemodule. An unauthenticated attacker can exploit this vulnerability by sending crafted HTTP requests under specific rewrite configurations. This can lead to a heap buffer overflow in the NGINX worker process, which may result in...

Exploit for CVE-2026-42945

NGINX Rift RCE Proof of concept for CVE-2026-42945, a cri...

BIT-NGINX-GATEWAY-2026-42945 NGINX ngx_http_rewrite_module vulnerability

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttprewritemodule module. This vulnerability exists when the rewrite directive is followed by a rewrite, if, or set directive and an unnamed Perl-Compatible Regular Expression PCRE capture for example, $1, $2 with a replacement strin...

BIT-NGINX-2026-42945 NGINX ngx_http_rewrite_module vulnerability

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttprewritemodule module. This vulnerability exists when the rewrite directive is followed by a rewrite, if, or set directive and an unnamed Perl-Compatible Regular Expression PCRE capture for example, $1, $2 with a replacement strin...

Exploit for CVE-2026-42945

nginx-rift-detect Behavioral detection script for CVE-2026-...

Exploit for CVE-2026-42945

CVE-2026-42945 — NGINX Rewrite Module Heap Buffer Overflow → R...

nginx-rift-private-lab

NGINX Rift RCE Proof of concept for CVE-2026-42945, a cri...

Exploit for CVE-2026-42945

AI-Assisted Rediscovery of CVE-2026-42945 in nginx This repos...

Exploit for CVE-2026-42945

// ngxhttpscriptcopycapturelencode c if e-isargs |...

Exploit for CVE-2026-42945

NGINX Rift RCE Exploit CVE-2026-42945 A professional Proof-...

USN-8271-1 nginx vulnerability

It was discovered that the nginx ngxhttprewritemodule component incorrectly handled certain rewrite directives. A remote attacker could use this issue to cause nginx to crash, resulting in a denial of service, or possibly execute arbitrary code...