CVE-2026-14666

Incomplete tracking in PostgreSQL of changes to role membership, role attributes, and database ownership allows a query to continue using cached row-level security policies after those changes require a different policy, via plan reuse. Stale policies continue until some other event invalidates the cache or connection termination ends the session. This permits a user to complete reads and modifications that were recently permitted but now forbidden. An attacker must tailor an attack to a particular application's pattern of privilege removal and role-specific row security policies. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

• postgresql postgresql (>= 14.0 < 14.24) • postgresql postgresql (>= 15.0 < 15.19) • postgresql postgresql (>= 16.0 < 16.15) • postgresql postgresql (>= 17.0 < 17.11) • postgresql postgresql (>= 18.0 < 18.5)