CVE-2026-14676: PostgreSQL

High severity, CVSS 8.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Heap buffer overflow in PostgreSQL pg_stat_statements allows the query author to execute arbitrary code as the operating system user running the database, via crafted queries containing array constants. Within major version 18, minor versions before PostgreSQL 18.6 are affected. Versions before PostgreSQL 18 are unaffected.

Affected products

• PostgreSQL PostgreSQL: from 18.0, before 18.5 (fixed in 18.5)

Published 2026-08-13. Last modified 2026-08-29.