CVE-2026-16416 Integer overflow in Chrome

Critical 9.3 Published Updated

A local attacker can escape the sandbox via malicious network traffic exploiting an integer overflow in Chromecast, requiring an upgrade to Chrome.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2026-16416?

CVE-2026-16416 is a critical vulnerability in Google Chrome, published on 21 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Integer overflow in Chromecast in Google Chrome prior to 150.0.7871.182 allowed a local attacker to potentially perform a sandbox escape via malicious network traffic. (Chromium security severity: High)

Weakness: CWE-190

Which versions are affected by CVE-2026-16416?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-16416?

Upgrade to a fixed version.

Is CVE-2026-16416 being exploited?

There is no known exploitation of CVE-2026-16416 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-16416, ECHO-d045-2d8d-6daf, GHSA-fp8j-cv93-rg46, MINI-x2xc-33vg-pgpr.

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