PHP version 8.3.6 (11 Apr 2024) Core: Fixed GH-13569 (GC buffer unnecessarily grows up to GC_MAX_BUF_SIZE when scanning WeakMaps). (Arnaud) Fixed bug GH-13612 (Corrupted memory in destructor with weak references).

Source: Fedora 40: php 2024-5e8ae0def0 Security Advisory Updates