Bug 2556948 (CVE-2026-113101)

Summary: CVE-2026-113101 chromium-browser: chromium-browser: Arbitrary code execution 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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OS: Linux   
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A flaw was found in chromium-browser. A remote attacker could execute arbitrary code within the sandbox environment by convincing a user to open a specially crafted HTML page. This vulnerability is due to a use-after-free condition in the SiteIsolation component, which occurs when memory is accessed after it has already been released.
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Description OSIDB Bzimport 2026-10-20 22:55:36 UTC
Use after free in SiteIsolation 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: High)