Bug 2450592 (CVE-2026-4739)

Summary: CVE-2026-4739 InsightSoftwareConsortium/ITK: Expat: InsightSoftwareConsortium ITK: Arbitrary code execution or denial of service via integer overflow.
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in InsightSoftwareConsortium ITK, specifically within its Expat modules. This integer overflow or wraparound vulnerability can be exploited by a remote attacker without requiring authentication. Successful exploitation could lead to arbitrary code execution, allowing the attacker to take full control of the affected system, or cause a denial of service (DoS), making the system unavailable.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2450674    
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Description OSIDB Bzimport 2026-03-24 04:01:44 UTC
Integer Overflow or Wraparound vulnerability in InsightSoftwareConsortium ITK (‎Modules/ThirdParty/Expat/src/expat modules).This issue affects ITK: before 2.7.1.