---
id: CVE-2026-18090
title: A flaw was found in gdk-pixbuf
summary: >-
  A flaw was found in gdk-pixbuf. This vulnerability allows a remote attacker to
  cause a heap out-of-bounds read by providing a specially crafted Apple Icon
  Image (.icns) file. The uncompress() function, which handles RLE-encoded ICNS
  icon…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H'
cwe:
  - CWE-125
vendor: Red Hat
product: gdk-pixbuf2
affected:
  - gdk-pixbuf2
  - glycin-loaders
  - gnome-tour
  - librsvg2
  - loupe
  - papers
  - snapshot
  - gdk-pixbuf2
  - gdk-pixbuf2
  - cppcheck
  - gdk-pixbuf2
  - gdk-pixbuf2
  - gdk-pixbuf2-xlib
  - gnome-tour
  - librsvg2
published: '2026-09-08'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T13:17:35.263'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-18090'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-18090'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2517751'
    label: secalert@redhat.com
  - url: 'https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/308'
    label: secalert@redhat.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-18090.json
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-18090'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-18090'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-14T12:08:11.268047Z'
epss: 0.00167
epssPercentile: 0.05297
ingestedAt: '2026-09-08T23:13:54.646Z'
---

## Overview

A flaw was found in gdk-pixbuf. This vulnerability allows a remote attacker to cause a heap out-of-bounds read by providing a specially crafted Apple Icon Image (.icns) file. The uncompress() function, which handles RLE-encoded ICNS icon data, fails to validate the source buffer's boundaries during decompression. This can lead to a denial of service, where the application crashes, or to information disclosure, potentially revealing sensitive data from adjacent memory.

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · updated 2026-09-08 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-18090.json)