Bug 2523810 (CVE-2026-79034)

Summary: CVE-2026-79034 chromium-browser: Chromium: Information leak in CORS 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. A remote attacker, after compromising the renderer process, could exploit an information leak in Cross-Origin Resource Sharing (CORS). This vulnerability allows the attacker to leak sensitive cross-origin data by tricking a user into visiting a specially crafted HTML page.
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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 20:38:04 UTC
Information leak in CORS in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)