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-force attack and deduce the salt. The problem is resolved in PostgreSQL Anonymizer 3.1.2 and later versions

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://gitlab.com/dalibo/postgresql_anonymizer/-/issues/649	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:dalibo:postgresql_anonymizer:*:*:*:*:*:postgresql:*:*

History

25 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) PostgreSQL Anonymizer contiene una vulnerabilidad que permite a usuarios enmascarados sin privilegios llamar repetidamente a la función anon.hash() y recopilar pares (semilla, salida_hash) para realizar un ataque de fuerza bruta fuera de línea y deducir la sal. El problema se resuelve en PostgreSQL Anonymizer 3.1.2 y versiones posteriores.

Information

Published : 2026-06-30 16:16

Updated : 2026-10-25 21:10

NVD link : CVE-2026-13455

Mitre link : CVE-2026-13455

CVE.ORG link : CVE-2026-13455

JSON object : View

Products Affected

dalibo

postgresql_anonymizer

CWE

CWE-328

Use of Weak Hash

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