Bug 2556831 (CVE-2026-113057)

Summary: CVE-2026-113057 chromium-browser: chromium-browser: Same-Origin Policy bypass 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: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in chromium-browser. An improper access control issue in the Compute Pressure feature allows a remote attacker to bypass the Same-Origin Policy (SOP) via a crafted HTML page. By convincing a user to visit a malicious website, an attacker can access sensitive information or resources across different web domains.
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Bug Depends On: 2558579, 2559543    
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Description OSIDB Bzimport 2026-10-20 22:47:01 UTC
Improper access control in ComputePressure in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)