CVE-2026-6471: PostgreSQL

High severity, CVSS 7.2. EPSS: 0.5% chance of exploitation in the next 30 days.

Missing authorization in PostgreSQL logical decoding allows a non-superuser holding REPLICATION privilege to dlopen any file visible to the operating system account running the server, via the choice of logical decoding plugin. This in turn runs arbitrary code as that account. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

Affected products

• PostgreSQL PostgreSQL: from 14.0, before 14.24 (fixed in 14.24); from 15.0, before 15.19 (fixed in 15.19); from 16.0, before 16.15 (fixed in 16.15); from 17.0, before 17.11 (fixed in 17.11); from 18.0, before 18.5 (fixed in 18.5)

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