CVE-2026-6575: PostgreSQL

Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Buffer over-read in PostgreSQL function pg_restore_attribute_stats() accepts array values of unmatched length, which causes query planning to read past end of one array. This allows a table maintainer to infer memory values past that array end. Within major version 18, minor versions before PostgreSQL 18.4 are affected. Versions before PostgreSQL 18 are unaffected.

Affected products

• PostgreSQL PostgreSQL: from 18.0, before 18.4 (fixed in 18.4)

Published 2026-05-14. Last modified 2026-06-17.