Bug 2442102 (CVE-2026-25898)

Summary: CVE-2026-25898 ImageMagick: ImageMagick: Information disclosure or denial of service via crafted image with invalid pixel index
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in ImageMagick. A remote attacker can exploit this vulnerability by crafting a malicious image file. The UIL and XPM image encoders do not properly validate pixel index values, which can become negative in High Dynamic Range Imaging (HDRI) builds. This improper validation leads to a global buffer overflow read, potentially resulting in information disclosure or a denial of service (DoS) due to a process crash.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2442181, 2442183    
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Description OSIDB Bzimport 2026-02-24 02:01:43 UTC 
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, the UIL and XPM image encoder do not validate the pixel index value returned by `GetPixelIndex()` before using it as an array subscript. In HDRI builds, `Quantum` is a floating-point type, so pixel index values can be negative. An attacker can craft an image with negative pixel index values to trigger a global buffer overflow read during conversion, leading to information disclosure or a process crash. Versions 7.1.2-15 and 6.9.13-40 contain a patch.