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MEDIUM · 4.3

CVE-2026-13455

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-forc...

Vulnerability 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

CVSS Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE

Affected Products

VendorProductVersions
DaliboPostgresql Anonymizer<= 3.1.2

Related Weaknesses (CWE)

CWE-328

References

FAQ

What is CVE-2026-13455?

CVE-2026-13455 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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-forc...

How severe is CVE-2026-13455?

CVE-2026-13455 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-13455?

Check the references section above for vendor advisories and patch information. Affected products include: Dalibo Postgresql Anonymizer.