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CVE-2026-13455

PostgreSQL Anonymizer: Unrestricted function can leak the secret salt

MEDIUM
4.3
CVSS Score
Published: June 30, 2026 at 03:19 PM UTC
Updated: October 25, 2026 at 09:10 PM UTC
2 products affected across 1 vendorAnonymizerPostgreSQL Anonymizer

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Anonymizer· Dalibo
95%
v ≤ 3.1.2
PostgreSQL Anonymizer· Dalibo
90%
1 ≤ v < 3.1.21
Affected range stops below 3.1.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://gitlab.com/dalibo/postgresql_anonymizer/-/issues/649

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMPostgreSQL
Vector?

Quick Info

StatusANALYZED
CWE
CWE-328

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