Security Advisory

CVE-2026-6638

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-05-14 13:00:15

Last updated 2026-05-14 15:28:30

Assigner PostgreSQL

CVSS score 3.7

State PUBLISHED

Description

SQL injection in PostgreSQL logical replication ALTER SUBSCRIPTION ... REFRESH PUBLICATION allows a subscriber table creator to execute arbitrary SQL with the subscription's publication-side credentials. The attack takes effect at the next REFRESH PUBLICATION. Within major versions 16, 17, and 18, minor versions before PostgreSQL 18.4, 17.10, and 16.14 are affected. Versions before PostgreSQL 16 are unaffected.

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