CVE-2026-11198 Code injection in Chrome

Critical 9.6 Published Updated

A remote attacker can escape the browser sandbox and execute arbitrary code via a crafted video file due to insufficient input validation in Chrome codecs.

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-2026-11198?

CVE-2026-11198 is a critical code injection 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

Insufficient validation of untrusted input in Codecs in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to potentially perform a sandbox escape via a crafted video file. (Chromium security severity: Medium)

Weakness: CWE-20

Which versions are affected by CVE-2026-11198?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-11198?

Upgrade to a fixed version.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2026-11198 being exploited?

There is no known exploitation of CVE-2026-11198 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-11198, ECHO-3e34-e9d5-7031, GHSA-w7pf-4g5q-p5j6, MINI-hhwf-756h-w8m2.

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