CVE-2026-13455 MEDIUM

CVE-2026-13455: PostgreSQL Anonymizer: Unrestricted function can leak the secret salt

Vendor Dalibo
Product PostgreSQL Anonymizer
Weakness CWE-328 · Weak hash
Published June 30, 2026
Last update June 30, 2026
View on NVD All CVEs

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

What the vulnerability does

01Description

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

Key dates

02Disclosure timeline

June 30, 2026 CVE published