Process Worker Process Signal 11 and SIGSEGV Detection

Ibrahim Saud@tektrix

•updated Jun 22, 2026•0•0•6

This rule detects crashes in Nginx worker processes, specifically looking for messages indicating a 'signal 11' or 'SIGSEGV' error. This could be indicative of a vulnerability being exploited (e.g., CVE-2026-42945) or other critical software malfunctions.