# CVE-2026-110181: PostgreSQL Anonymizer: Function declared with SQL-standard syntax leak anonymized data

Status: published. Published: 2026-10-28. Updated: 2026-11-05.

PostgreSQL Anonymizer contains a vulnerability related to anonymization functions defined using SQL-standard function bodies. PostgreSQL analyses such functions at declaration time, while Anonymizer only attempts to check them at execution time. This problem can be exploited by any user with the TEMPORARY privilege. The issue is fixed in PostgreSQL Anonymizer 3.3.0 and later versions.

## Remediation

- workaround: Revoke TEMPORARY from PUBLIC and CREATE on all schemas from masked roles to prevent them from creating a function. Revoke EXECUTE from PUBLIC on function with SQL-standard bodies since anon fails to anonymize the data they return. (source: CNA: PostgreSQL)

## Affected products and versions

- DALIBO / PostgreSQL Anonymizer: ≥ 1; < 3.3.0 (affected, semver). Source: CNA: PostgreSQL

## Severity and prioritization

- CVSS 3.1: 6.5 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N; source: CNA: PostgreSQL

- CVSS 3.1: 6.5 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N; source: NVD: f86ef6dc-4d3a-42ad-8f28-e6d5547a5007

- CISA KEV: No listing in collected sources

- EPSS: 0.27% as of 2026-11-05; percentile 19.24%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-693

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://gitlab.com/dalibo/postgresql_anonymizer/-/issues/718 (CNA: PostgreSQL)

- https://gitlab.com/dalibo/postgresql_anonymizer/-/issues/718 (f86ef6dc-4d3a-42ad-8f28-e6d5547a5007)

## Provenance

- CNA: PostgreSQL: https://www.cve.org/CVERecord?id=CVE-2026-110181; retrieved 2026-11-05; source updated 2026-11-05

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-110181; retrieved 2026-11-05; source updated 2026-11-05

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-110181; retrieved 2026-11-05; source updated Not reported

Revision: 84bc49ae86a662054111590677c9ba2518303e35ca68675dcb4193ded3911160

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