CVE-2026-95356 Use after free in Chrome

Critical 9.6 Published Updated

Remote attackers can execute arbitrary code outside the sandbox via a crafted HTML page in Google Chrome, requiring social engineering.

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-2026-95356?

CVE-2026-95356 is a critical use after free vulnerability in Google Chrome, published on 29 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

Use after free in WindowDialog in Google Chrome prior to 154.0.8037.57 allowed a remote attacker leveraging social engineering to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)

Weakness: CWE-416

Which versions are affected by CVE-2026-95356?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-95356?

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-2026-95356 being exploited?

There is no known exploitation of CVE-2026-95356 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-95356, ECHO-c988-acbe-73e4, GHSA-j4rq-37m4-w856, MINI-qvcf-hjp4-xg27.

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