Type confusion in V8 (Chrome <152.0.7977.82) sandbox escape
CVE-2026-85046 Published on September 3, 2026
Type confusion in V8 in Google Chrome prior to 152.0.7977.82 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
Known Exploited Vulnerability
This Google Chromium V8 Type Confusion Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Google Chromium V8 contains a type confusion vulnerability that allows a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
The following remediation steps are recommended / required by September 18, 2026: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicab
Vulnerability Analysis
CVE-2026-85046 is exploitable with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is an Object Type Confusion Vulnerability?
The program allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
CVE-2026-85046 has been classified to as an Object Type Confusion vulnerability or weakness.
Products Associated with CVE-2026-85046
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Affected Versions
Google Chrome:- Version 152.0.7977.82 and below 152.0.7977.82 is affected.