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CVE-2026-23876

Heap buffer overflow with attacker-controlled data in XBM parser

Published: Jan 20, 2026Updated: Jan 29, 2026 Sources: CVE List NVD BDUCWE-122
NVD MITRE
8.1CVSSHIGH
EPSS Score
0.5%
Top 61.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-122CWE-190

Affected Products

imagemagickimagemagick
On-premLibrary
OSS Libraries / generic-library
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
ImageMagickImageMagick Studio LLCOSS Libraries
ImageMagickImageMagick
On-premLibrary
OSS Libraries / generic-library
imagemagickoss-projectUSOSS Librariesaka graphicsmagick, libmagick
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
imagemagick studio llccommercialUSOSS Librariesaka imagemagick

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://github.com/ImageMagick/ImageMagick/commit/2fae24192b78fdfdd27d766fd21d90aeac6ea8b8
github.com
https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-r49w-jqq3-3gx8
github.com
https://github.com/ImageMagick/ImageMagick/commit/2fae24192b78fdfdd27d766fd21d90aeac6ea8b8
github.com
and 2 more references View all →

Timeline

Published
Jan 20, 2026
Last Updated
Jan 29, 2026

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