CVE-2026-11100 Use after free in Chrome

Critical 9.6 Published Updated

A remote attacker can escape the sandbox via a crafted HTML page in Google Chrome on Mac, requiring user interaction.

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-2026-11100?

CVE-2026-11100 is a critical use after free 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

Use after free in File Input in Google Chrome on Mac prior to 149.0.7827.53 allowed a remote attacker who convinced a user to engage in specific UI gestures to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)

Weakness: CWE-416

Which versions are affected by CVE-2026-11100?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-11100?

Upgrade to a fixed version.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2026-11100 being exploited?

There is no known exploitation of CVE-2026-11100 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-11100, ECHO-c7c4-0020-bc83, GHSA-vgp5-79vf-q8qp, MINI-rwqx-gp6c-r3qm.

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