Bug 2508750 (CVE-2026-17883)

Summary: CVE-2026-17883 chromium-browser: Google Chrome Headless: Same-Origin Policy bypass via crafted HTML page
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
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 Google Chrome's Headless mode. A remote attacker could exploit this vulnerability by tricking a user into visiting a specially crafted HTML page. This could allow the attacker to bypass the Same-Origin Policy (SOP), a security mechanism that prevents web pages from interacting with resources from different origins, potentially leading to information disclosure or other cross-site attacks.
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Bug Depends On: 2509634, 2509635    
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Description OSIDB Bzimport 2026-07-30 01:04:14 UTC
Inappropriate implementation in Headless in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: Medium)