Live › vulnerability › CVE-2026-121221
A type confusion bug in the V8 JavaScript engine of Google Chrome lets a remote attacker run arbitrary code inside the browser sandbox when the victim opens a crafted HTML page. Chromium rates it High severity.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-11-03 21:19 UTC. All times on this page are UTC.
Any installed Google Chrome before 157.0.8103.38 is exposed, because the flaw is triggered just by loading a crafted page. Exploitation requires no account and no special setting. Teams that manage browsers for staff should check managed fleets, and browsers on shared kiosks or build agents count too.
No product ranges from the sources yet.
google-chrome --version on Linux157.0.8103.38157.0.8103.38 or laterEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
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)
This page as .md · .json · in your agent: get_signal("CVE-2026-121221")
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