Bug 2556967 (CVE-2026-113343)

Summary: CVE-2026-113343 chromium-browser: chromium-browser: arbitrary code execution inside sandbox via crafted HTML page
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 chromium-browser. A memory corruption vulnerability exists within the browser sandbox, an isolated security environment designed to contain untrusted processes. A remote attacker could exploit this flaw by enticing a user to load a crafted HTML page, leading to arbitrary code execution within the sandbox.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2559127, 2558579    
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Description OSIDB Bzimport 2026-10-20 22:57:12 UTC
Memory corruption in Sandbox in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)