CVE-2026-6474 PostgreSQL timeofday() can disclose portions of server memory

What is CVE-2026-6474?

CVE-2026-6474 is a medium-severity vulnerability in Postgresql Postgresql, published on 14 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

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.

Weakness: CWE-134

Which versions are affected by CVE-2026-6474?

1 open source package ship an affected version, including postgresql. It affects 1 product.

Products include Postgresql Postgresql.

How do I fix CVE-2026-6474?

Upgrade postgresql to a fixed version for your release line: 14.23.0, 15.18.0, 16.14.0 or 17.10.0.

Is CVE-2026-6474 being exploited?

There is no known exploitation of CVE-2026-6474 in the wild and no public exploit code.

Other vulnerabilities in Postgresql Postgresql

• CVE-2013-1902 Information disclosure in n/a Critical 10.0
• CVE-2013-1903 Information disclosure in n/a Critical 10.0
• CVE-2007-3279 Privilege escalation in n/a Critical 10.0
• CVE-2002-1399 Integer overflow in n/a Critical 10.0
• CVE-2016-3065 Information disclosure in n/a Critical 9.1

All Postgresql Postgresql vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2026-6474, AZL-86831, BELL-CVE-2026-6474, BIT-postgresql-2026-6474, DEBIAN-CVE-2026-6474, ECHO-63b9-137e-93f1 and 9 more.