CVE-2026-95344 Race condition in Chrome

High 8.0 Published Updated

A remote attacker can bypass site isolation in Google Chrome via a crafted extension exploiting a race condition in DevTools.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2026-95344?

CVE-2026-95344 is a high-severity vulnerability in Google Chrome, published on 29 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Race condition in DevTools in Google Chrome prior to 154.0.8037.57 allowed a remote attacker leveraging social engineering to bypass site isolation via a crafted Chrome extension. (Chromium security severity: Medium)

Weakness: CWE-367

Which versions are affected by CVE-2026-95344?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-95344?

Upgrade to a fixed version.

Is CVE-2026-95344 being exploited?

There is no known exploitation of CVE-2026-95344 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-95344, ECHO-f2be-c572-8d2e, GHSA-3wp9-2p94-jcq7, MINI-233f-4c4r-4xw8.

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