CVE-2026-50738 (GCVE-0-2026-50738)

Vulnerability from cvelistv5 – Published: 2026-07-28 17:55 – Updated: 2026-07-28 18:46
VLAI
Summary
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.
Severity
7.7 (High)
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 18:44 UTC
CWE
Assigner
EDB CNA under the mitre root
CNA scorecard – unranked: 9 records in the last 180 days, 10 needed details
References
Impacted products
Vendor Product Version CPE status
EnterpriseDB pglogical Affected: 2 , < 2.4.8 (semver)
guessed Create a notification for this product.
Credits
Mehmet Ince (@mdisec)
Show details on NVD website
To clipboard 

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