CVE-2026-11276 Security feature bypass in Chrome

Medium 5.1 Published Updated

An attacker on the local network can bypass discretionary access control in Google Chrome via malicious network traffic.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2026-11276?

CVE-2026-11276 is a medium-severity vulnerability in Google Chrome, published on 4 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Inappropriate implementation in Cast in Google Chrome prior to 149.0.7827.53 allowed an attacker on the local network segment to bypass discretionary access control via malicious network traffic. (Chromium security severity: Low)

Weakness: CWE-269

Which versions are affected by CVE-2026-11276?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-11276?

Upgrade to a fixed version.

Is CVE-2026-11276 being exploited?

There is no known exploitation of CVE-2026-11276 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-11276, ECHO-64ba-104b-1daf, GHSA-vx7f-665f-92jv, MINI-3hm2-mggj-mx2r.

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