Bug 2547969 (CVE-2026-105827)

Summary: CVE-2026-105827 ImageMagick: ImageMagick: Denial of Service via uncontrolled recursion in CALS decoder
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. A remote attacker can trigger a Denial of Service (DoS) by providing a specially crafted image file in the Continuous Acquisition and Life-cycle Support (CALS) format. Because the CALS decoder fails to properly limit recursion depth, processing the malicious image exhausts the application's stack memory and crashes the process.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2548420    
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Description OSIDB Bzimport 2026-10-08 14:21:59 UTC
ImageMagick before 7.1.2-30 and 6.9.13-55 contains an uncontrolled recursion vulnerability in the CALS decoder due to a missing depth check. Attackers can supply a crafted CALS image that triggers unbounded recursion, exhausting the stack and crashing the process, resulting in a denial of service.