CVE-2026-42945: NGINX Rewrite Heap Overflow Enables Remote DoS & Potential RCE (opens in new tab)

CVE-2026-42945: NGINX Rewrite Heap Overflow Enables Remote DoS & Potential RCE CVE-2026-42945 is a heap-based buffer overflow in NGINX that occurs in ngx_http_rewrite_module (the rewrite module). The bug is remotely reachable over HTTP and can be triggered without authentication when specific rewrite-rule patterns are present, which makes it relevant for internet-facing NGINX reverse proxies. Many […]