---
id: CVE-2026-105615
title: >-
  PostgreSQL Anonymizer: Masked roles can read the statistics of masked columns
  in pg_stats
summary: >-
  PostgreSQL's optimized statistics on a table are visible as long as you have
  SELECT privilege on said table. A masked role can therefore read a limited
  subset of the data through the statistics view's histograms and mcvs. The
  vulnerabili…
severity: low
cvss: 3.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-202
vendor: DALIBO
product: PostgreSQL Anonymizer
affected:
  - postgresql_anonymizer >= 1 < 3.3.0
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T16:59:03.951287Z'
published: '2026-10-28'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T16:59:14.585Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-105615'
references:
  - url: 'https://gitlab.com/dalibo/postgresql_anonymizer/-/issues/693'
tags:
  - cve.org
epss: 0.00143
epssPercentile: 0.03651
ingestedAt: '2026-10-28T18:15:46.389Z'
---

## Overview

PostgreSQL's optimized statistics on a table are visible as long as you have SELECT privilege on said table. A masked role can therefore read a limited subset of the data through the statistics view's histograms and mcvs. The vulnerability is resolved in PostgreSQL Anonymizer 3.3.0 and later versions.

## Affected

- `postgresql_anonymizer >= 1 < 3.3.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

### Workarounds

For sensitive columns, statitics can be disabled with `ALTER TABLE my_table ALTER COLUMN my_col SET STATISTICS 0; ANALYZE my_table;`.