Technical details and proof-of-concept exploit code are now available for CVE-2026-42945, a critical NGINX flaw that can cause denial of service and, with ASLR disabled, possible remote code execution. The vulnerability affects NGINX servers using rewrite and set directives and has been patched in F5’s latest releases. #CVE-2026-42945 #NGINX #F5 #ngx_http_rewrite_module
Keypoints
- CVE-2026-42945 is a heap buffer overflow in NGINX’s ngx_http_rewrite_module.
- The flaw can trigger a restart and cause a denial-of-service condition.
- Remote code execution may be possible if ASLR is disabled.
- The issue affects NGINX servers using rewrite and set directives.
- F5 has patched the bug in NGINX Plus and open source releases.
Read More: https://www.securityweek.com/poc-code-published-for-critical-nginx-vulnerability/