CVE-2026-121078

chromium-browser: Type confusion in V8

Published Nov 3, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
Type confusion in V8 in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title chromium-browser: Type confusion in V8
References
Metrics threat_severity

None

threat_severity

Important

Type Values Removed Values Added
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Title V8 Type Confusion Enables Remote Code Execution in Chrome Sandbox
Type Values Removed Values Added
Title V8 Type Confusion Enables Remote Code Execution in Chrome Sandbox
Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Description Type confusion in V8 in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
Weaknesses CWE-843
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Nov 5, 2026, 5:50 PM
Reserved
Nov 3, 2026, 9:25 AM
Status
Analyzed
Published
Nov 3, 2026, 9:17 PM
Modified
Nov 5, 2026, 6:17 PM
Severity
Important
Public date
Nov 3, 2026, 8:42 PM