---
id: CVE-2026-105613
title: >-
  PostgreSQL Anonymizer: Unbounded memory allocation (DoS) in range-based dummy
  functions
summary: >-
  PostgreSQL Anonymizer's range-based dummy functions dont constraint the range
  size. This vulnerability can be exploited to exhaust the memory of a backend
  and OOM-kill it (when ovecommit is on), which results in a cluster-wide crash
  reco…
severity: medium
cvss: 4.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:L'
cvssSource: cna
cwe:
  - CWE-789
vendor: DALIBO
product: PostgreSQL Anonymizer
affected:
  - postgresql_anonymizer >= 1 < 3.3.0
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T17:00:04.135267Z'
published: '2026-10-28'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T17:00:17.887Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-105613'
references:
  - url: 'https://gitlab.com/dalibo/postgresql_anonymizer/-/issues/690'
tags:
  - cve.org
epss: 0.00183
epssPercentile: 0.07945
ingestedAt: '2026-10-28T18:15:46.390Z'
---

## Overview

PostgreSQL Anonymizer's range-based dummy functions dont constraint the range size. This vulnerability can be exploited to exhaust the memory of a backend and OOM-kill it (when ovecommit is on), which results in a cluster-wide crash recovery. The problem 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

Revoke execution rights on the range-based dummy functions or drop them.