CVE-2026-11258 Security feature bypass in Chrome

Medium 6.5 Published Updated

A remote attacker can bypass discretionary access control in Chrome's File System Access API by tricking a user into specific UI gestures on a crafted HTML page.

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-2026-11258?

CVE-2026-11258 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 File System Access in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who convinced a user to engage in specific UI gestures to bypass discretionary access control via a crafted HTML page. (Chromium security severity: Low)

Weakness: CWE-284

Which versions are affected by CVE-2026-11258?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-11258?

Upgrade to a fixed version.

Is CVE-2026-11258 being exploited?

There is no known exploitation of CVE-2026-11258 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-11258, ECHO-a7ec-1c88-5d06, GHSA-qx55-562j-v29w, MINI-79h9-gghh-rr94.

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