CVE-2026-11129 Cross-site request forgery in Chrome

Medium 6.5 Published Updated

A remote attacker can leak cross-origin data via a crafted HTML page due to inappropriate implementation in Chrome Extensions.

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-2026-11129?

CVE-2026-11129 is a medium-severity vulnerability in Google Chrome, published on 4 Jun 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

Inappropriate implementation in Extensions in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

Weakness: CWE-352

Which versions are affected by CVE-2026-11129?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-11129?

Upgrade to a fixed version.

Is CVE-2026-11129 being exploited?

There is no known exploitation of CVE-2026-11129 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-11129, ECHO-d27c-8244-ade8, GHSA-m4xv-prr9-c93r, MINI-jgc7-7qg4-xg49.

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