What’s Vulnerable › Vulnerabilities
CVE-2026-50738
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-07-28 · updated 2026-10-23
- Weakness: CWE-416
Description
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 products
- EnterpriseDB pglogical: from 2.0.0 before 2.4.8 — fixed in 2.4.8
How to fix
Upgrade to a fixed version: EnterpriseDB pglogical 2.4.8. Check the vendor advisory for mitigations.
References
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