Bug 2431038 (CVE-2026-23876)

Summary: CVE-2026-23876 ImageMagick: ImageMagick: Arbitrary code execution via a crafted XBM image file
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in ImageMagick. A heap buffer overflow, a type of memory corruption, in the XBM image decoder (ReadXBMImage) allows a remote attacker to write controlled data beyond the allocated memory buffer when processing a maliciously crafted image file. This can lead to arbitrary code execution, information disclosure, or a denial of service. The vulnerability can be triggered by any operation that reads or identifies an image.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2431053, 2431054, 2431055, 2431056, 2431057    
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Description OSIDB Bzimport 2026-01-20 02:01:33 UTC 
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.
Comment 2 errata-xmlrpc 2026-02-23 06:40:27 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2026:3058 https://access.redhat.com/errata/RHSA-2026:3058