CVE-2026-23876

Heap buffer overflow with attacker-controlled data in XBM parser

Published Jan 20, 2026 CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Description
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-13 and 6.9.13-38, a heap buffer overflow vulnerability in the XBM image decoder (ReadXBMImage) allows an attacker to write controlled data past the allocated heap buffer when processing a maliciously crafted image file. Any operation that reads or identifies an image can trigger the overflow, making it exploitable via common image upload and processing pipelines. Versions 7.1.2-13 and 6.9.13-38 fix the issue.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4448-1 imagemagick security update
Debian DSA Debian DSA DSA-6111-1 imagemagick security update
Ubuntu USN Ubuntu USN USN-8021-1 ImageMagick vulnerability
History
Type Values Removed Values Added
CPEs cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Imagemagick
Imagemagick imagemagick
Vendors & Products Imagemagick
Imagemagick imagemagick
Type Values Removed Values Added
Description ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-13 and 6.9.13-38, a heap buffer overflow vulnerability in the XBM image decoder (ReadXBMImage) allows an attacker to write controlled data past the allocated heap buffer when processing a maliciously crafted image file. Any operation that reads or identifies an image can trigger the overflow, making it exploitable via common image upload and processing pipelines. Versions 7.1.2-13 and 6.9.13-38 fix the issue.
Title Heap buffer overflow with attacker-controlled data in XBM parser
Weaknesses CWE-122
CWE-190
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jul 15, 2026, 1:17 AM
Reserved
Jan 16, 2026, 9:02 PM
Status
Modified
Published
Jan 20, 2026, 1:15 AM
Modified
Jul 15, 2026, 2:18 AM
Severity
Important
Public date
Jan 20, 2026, 1:01 AM