PHP’s October RCE fixes: patch the runtime, then verify the workers
The PHP project disclosed two critical remote-code-execution vulnerabilities on October 21. Fixed upstream branches begin at 8.2.35, 8.3.36, 8.4.27 and 8.5.12. Apache mod_php and PHP-FPM have different demonstrated attack conditions; neither a WAF nor an application-framework upgrade substitutes for a patched runtime.