Bug 2543444 (CVE-2026-95275)

Summary: CVE-2026-95275 chromium-browser: chromium-browser: Security policy bypass in MediaStream 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 incorrect reference resolution flaw in the MediaStream component allows a remote attacker to bypass the web origin policy (a security mechanism that isolates websites from one another) by tricking a user into opening a crafted HTML page. Successful exploitation could allow the attacker to access a privileged internal browser page, compromising browser security boundaries.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2544652, 2544667    
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Description OSIDB Bzimport 2026-09-29 18:17:05 UTC
Incorrect reference resolution in MediaStream in Google Chrome prior to 154.0.8037.57 allowed a remote attacker to bypass web origin policy into a privileged page via a crafted HTML page. (Chromium security severity: Medium)