Live › vulnerability › CVE-2026-121183
An incorrect authorization check in Chrome's Extensions component lets an attacker who already controls the renderer process run code outside the browser sandbox. The attacker needs a crafted HTML page to trigger it.
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.
Anyone running Google Chrome before 157.0.8103.38 on desktop. The attack chains a renderer compromise with this flaw, so it is most relevant to users who browse untrusted pages. Managed fleets should confirm the version was pushed.
No product ranges from the sources yet.
157.0.8103.38 or later.Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
Incorrect authorization in Extensions in Google Chrome prior to 157.0.8103.38 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
This page as .md · .json · in your agent: get_signal("CVE-2026-121183")
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