CVE-2026-13455: Dalibo PostgreSQL Anonymizer

Medium severity, CVSS 4.3. EPSS: 0.2% chance of exploitation in the next 30 days.

PostgreSQL Anonymizer contains a vulnerability that allows unprivileged masked users to repeatedly call the anon.hash() function and collects (seed, hash_output) pairs to perform an offline brute-force attack and deduce the salt. The problem is resolved in PostgreSQL Anonymizer 3.1.2 and later versions

Affected products

• Dalibo PostgreSQL Anonymizer: up to and including 3.1.2

Published 2026-06-30. Last modified 2026-07-06.