CVE-2026-87628 Use after free in Chrome

High 8.3 Published Updated

An adjacent attacker can execute arbitrary code outside the sandbox in Google Chrome via crafted network traffic exploiting a use-after-free flaw.

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-2026-87628?

CVE-2026-87628 is a high-severity use after free vulnerability in Google Chrome, published on 9 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Use after free in Cast in Google Chrome prior to 153.0.8010.36 allowed an adjacent attacker to potentially execute arbitrary code outside the sandbox via crafted network traffic. (Chromium security severity: Critical)

Weakness: CWE-416

Which versions are affected by CVE-2026-87628?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-87628?

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-2026-87628 being exploited?

There is no known exploitation of CVE-2026-87628 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-87628, ECHO-c713-c4e7-9db8, GHSA-rw58-xjwr-65xp, MINI-w49v-3vj6-mq8v.

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