Self-hosted Coolify operators need to check their exact v4 branch: patched versions are 4.0.1, 4.1.3, 4.2.1, 4.3.24 and 4.4.7, but maintainers recommend 4.4.7 for fuller coverage.
The October 21 PHP emergency patches are now available. Update every web-serving runtime; temporary configuration mitigations do not fully address the flaws.