Bug 2567639 (CVE-2026-123273)

Summary: CVE-2026-123273 ImageMagick: ImageMagick: Denial of Service via infinite loop in SVG decoding
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: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in ImageMagick. An attacker can cause a Denial of Service (DoS) by submitting a specially crafted Scalable Vector Graphics (SVG) image. Due to improper validation of pixel cache dimensions during decoding, the application enters an infinite loop while processing the image. This behavior exhausts CPU resources and hangs the image decoding worker.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2568087, 2568088    
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Description OSIDB Bzimport 2026-11-05 22:14:07 UTC
ImageMagick before 7.1.2-35 and 6.9.13-60 contains an infinite loop vulnerability in the SVG decoder because QueueAuthenticPixelCacheNexus in MagickCore/cache.c fails to validate requested region width and height. Attackers can supply a crafted SVG image that repeatedly requests a non-advancing pixel region, consuming CPU and hanging the decoding worker.