---
id: "CVE-2026-105614"
kind: "vulnerability"
aliases: ["CVE-2026-105614"]
title: "PostgreSQL Anonymizer: image_blur accepts oversized image dimensions, exhausting memory"
severity: "medium"
cvss: 4.7
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["database", "package", "postgresql", "postgresql-anonymizer", "self-hosted"]
not_affected_if: ["extension-not-installed", "fixed-version", "image-blur-unused"]
published_at: "2026-10-28T18:17:03+00:00"
first_seen_at: "2026-10-28T18:34:32+00:00"
updated_at: "2026-10-28T18:35:09+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-105614", "first_seen_at": "2026-10-28T18:34:32+00:00"}]
---

# PostgreSQL Anonymizer: image_blur accepts oversized image dimensions, exhausting memory

The anon.image_blur() function in PostgreSQL Anonymizer does not check the declared dimensions of an input image, so a small file claiming huge dimensions can be supplied. Processing it can exhaust backend memory, causing the out-of-memory killer to terminate the backend and trigger a cluster-wide crash recovery.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Run `SELECT extversion FROM pg_extension WHERE extname = 'anon';` in each database where the extension is installed and compare against `3.3.0`.
- Check whether the `anon.image_blur` function is used by application code or any SQL you run.

## Fix

- Upgrade PostgreSQL Anonymizer to `3.3.0` or later.

## Timeline

- 2026-10-28T18:34:32+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-105614

## From the sources

PostgreSQL Anonymizer's `anon.image_blur()` function doesn't check the declared dimension of the provided image, allowing an attacker to provide a small image with enormous declared dimensions. 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.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_