Bug 2492143 (CVE-2026-56370)

Summary: CVE-2026-56370 Imagemagick: ImageMagick - Out-of-bounds Access in ConnectedComponentsImage via connected-components Artifact
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
An out-of-bounds access vulnerability exists in ImageMagick's ConnectedComponentsImage() function. By passing malformed connected-components definitions through the CLI, an attacker can cause a denial of service or potentially execute arbitrary code.
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2493402, 2493403    
Bug Blocks:    

Description OSIDB Bzimport 2026-06-24 12:01:29 UTC
ImageMagick before 7.1.2-19 contains an out-of-bounds access vulnerability in ConnectedComponentsImage() when processing connected-components artifacts with invalid indices. Attackers can trigger access violations by specifying malformed connected-components definitions via CLI, causing denial of service or potential code execution.