Bug 2555936 (CVE-2026-86922)

Summary: CVE-2026-86922 webkitgtk: WebKitGTK: Arbitrary code execution via type confusion
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: 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 WebKitGTK. Due to a type confusion issue—where the application misinterprets an object's data type in memory—processing maliciously crafted web content can lead to memory corruption. A remote attacker could exploit this vulnerability to achieve arbitrary code execution on the targeted system.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-10-20 01:29:09 UTC
A type confusion issue was addressed with improved state management. This issue is fixed in Safari 27, iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27. Processing maliciously crafted web content may lead to arbitrary code execution.