CVE-2026-6474: PostgreSQL

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

Externally-controlled format string in PostgreSQL timeofday() function allows an attacker to retrieve portions of server memory, via crafted timezone zones. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

Affected products

• PostgreSQL PostgreSQL: before 14.23 (fixed in 14.23); from 15.0, before 15.18 (fixed in 15.18); from 16.0, before 16.14 (fixed in 16.14); from 17.0, before 17.10 (fixed in 17.10); from 18.0, before 18.4 (fixed in 18.4)

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