Skip to content
OpenAdvisories
Medium · 4.3 CVE-2026-13455 EUVD-2026-40349GHSA-8ch8-93q8-mhm3

PostgreSQL Anonymizer: Unrestricted function can leak the secret salt

Published Jun 30, 2026 · Updated Jun 30, 2026 · Assigned by PostgreSQL

Description

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

VendorProductAffectedFixed
DALIBO PostgreSQL Anonymizer 1 – < 3.1.2 3.1.2

References