CVE-2026-50738

The record

A use-after-free condition exists in pglogical's worker signaling code, where a worker structure can be dereferenced after the underlying slot has been freed or recycled during normal worker lifecycle events. The condition is reachable during normal replication operation, including by a low-privileged user able to influence worker start, stop, and restart timing through permitted pglogical operations. In the typical case the condition crashes replication workers, causing an availability impact. In the worst case a use-after-free in a PostgreSQL backend can be leveraged as a remote code execution primitive at the privilege of that backend.

Affected packages

Related vulnerabilities

• CVE-2026-109618 PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort… CWE-416
• CVE-2026-109619 PHP has various global state that temporarily points into request memory. CWE-416
• CVE-2026-112402 Pillow is a Python imaging library. CWE-416
• CVE-2026-112396 Pillow is a Python imaging library. CWE-416
• CVE-2025-55654 A use-after-free in the gf_filter_pid_get_packet function (filter_core/filter_pid.c) of… CWE-416
• CVE-2026-17591 A flaw was found in libarchive. CWE-416
• CVE-2026-92392 During an upload, curl mishandles HTTP/2 `RST_STREAM` received from the server (with… CWE-416
• CVE-2026-109268 ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 contains a use after free… CWE-416