CVE-2026-11260 Security feature bypass in Chrome

Medium 4.3 Published Updated

A remote attacker can bypass Content Security Policy in Google Chrome via a crafted HTML page due to inappropriate permission implementation.

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-2026-11260?

CVE-2026-11260 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 Permissions in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chromium security severity: Low)

Weakness: CWE-693

Which versions are affected by CVE-2026-11260?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-11260?

Upgrade to a fixed version.

Is CVE-2026-11260 being exploited?

There is no known exploitation of CVE-2026-11260 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-11260, ECHO-71ec-1778-a6bd, GHSA-qpvw-56rj-7fxm, MINI-fr9v-jmvp-8h9c.

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