Bug 2524015 (CVE-2026-78939)

Summary: CVE-2026-78939 chromium-browser: Chromecast in Google Chrome: Arbitrary code execution via use after free vulnerability
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 Chromecast in Google Chrome. A remote attacker who has compromised the renderer process could exploit a use after free vulnerability by crafting a malicious HTML page. This could lead to arbitrary code execution outside of the sandbox, allowing the attacker to gain further control over the affected system.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2524890, 2524891    
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Description OSIDB Bzimport 2026-08-25 20:57:35 UTC 
Use after free in Chromecast in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)