How severe is CVE-2026-13455?

CVE-2026-13455 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-13455 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-13455?

CVE-2026-13455 affects Dalibo Postgresql Anonymizer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-13455?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-13455 published?

CVE-2026-13455 was published on 2026-06-30 and last updated on 2026-07-06.

CVE-2026-13455

CVE-2026-13455 is a medium-severity vulnerability in Dalibo Postgresql Anonymizer with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-328.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-328
Affected product: Dalibo Postgresql Anonymizer
Published: 2026-06-30
Last modified: 2026-07-06

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

Frequently asked questions

What is 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
How severe is CVE-2026-13455?: CVE-2026-13455 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-13455 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-13455?: CVE-2026-13455 affects Dalibo Postgresql Anonymizer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-13455?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-13455 published?: CVE-2026-13455 was published on 2026-06-30 and last updated on 2026-07-06.

References

https://gitlab.com/dalibo/postgresql_anonymizer/-/issues/649

Affected products (1)

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

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