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
Published: 2026-06-30
Score: 4.3 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Workaround

Restrict access to anon.hash() for masked users: SECURITY LABEL FOR anon ON FUNCTION anon.hash(TEXT) IS 'RESTRICTED'.

Tracking

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Advisories

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History

Tue, 30 Jun 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 30 Jun 2026 16:00:00 +0000

Type Values Removed Values Added
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
Title PostgreSQL Anonymizer: Unrestricted function can leak the secret salt
Weaknesses CWE-328
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: PostgreSQL

Published:

Updated: 2026-06-30T15:57:53.085Z

Reserved: 2026-06-26T18:36:50.872Z

Link: CVE-2026-13455

cve-icon Vulnrichment

Updated: 2026-06-30T15:57:14.669Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-30T18:30:18Z

Weaknesses