CVE-2026-14666 Affecting postgresql-18 package, versions <18.6-0ubuntu0.26.04.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU2604-POSTGRESQL18-18768299
- published21 Aug 2026
- disclosed13 Aug 2026
Introduced: 13 Aug 2026
NewCVE-2026-14666 (opens in a new tab)How to fix?
Upgrade Ubuntu:26.04 postgresql-18 to version 18.6-0ubuntu0.26.04.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream postgresql-18 package and not the postgresql-18 package as distributed by Ubuntu.
See How to fix? for Ubuntu:26.04 relevant fixed versions and status.
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.