CVE-2026-87489 Memory corruption in Chrome

High 8.8 Published Updated

A remote attacker can execute arbitrary code inside the sandbox via a crafted Chrome extension due to memory corruption in V8.

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-2026-87489?

CVE-2026-87489 is a high-severity memory corruption vulnerability in Google Chrome, published on 9 Sep 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

Memory corruption in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted Chrome extension. (Chromium security severity: Low)

Weakness: CWE-119

Which versions are affected by CVE-2026-87489?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-87489?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-87489 being exploited?

There is no known exploitation of CVE-2026-87489 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as AZL-100011, DEBIAN-CVE-2026-87489, ECHO-743c-8734-b84e, GHSA-75jh-cw99-rpg7, MINI-rj3w-qgv4-3hcr.

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