PHP CVE-2026-109618/109619 arm - pre-RINIT OOM bailout
Detects PHP fatal out-of-memory errors reported in Unknown on line 0, indicating a memory exhaustion bailout before request initialization (pre-RINIT), associated with CVE-2026-109618 and CVE-2026-109619 exploitation attempts. Note - the logsource product php / service error is not defined by SigmaHQ. Map it with a processing pipeline to wherever PHP error lines land in your stack (PHP error_log file, nginx or Apache error log, PHP-FPM log, or syslog/journal). If log_errors is Off, or FPM runs with fastcgi.logging Off and catch_workers_output no, the line is never written.
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