Vulnerability · Published Jun 30, 2026 · Assigned by PostgreSQL
CVE-2026-13455PostgreSQL Anonymizer: Unrestricted function can leak the secret salt
Medium 4.3
In plain English
A medium-severity security flaw in PostgreSQL Anonymizer from DALIBO. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.2%top 91.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| DALIBO | PostgreSQL Anonymizer | 1 – before 3.1.2 |
Weakness: CWE-328 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N