CVE-2026-78985 Code injection in Chrome

Critical 9.6 Published Updated

Remote attackers can execute arbitrary code outside the sandbox via crafted HTML pages due to incorrect reference resolution in Chrome's FileSystem.

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-2026-78985?

CVE-2026-78985 is a critical code injection vulnerability in Google Chrome, published on 25 Aug 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

Incorrect reference resolution in FileSystem in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

Weakness: CWE-706

Which versions are affected by CVE-2026-78985?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-78985?

Upgrade to a fixed version.

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

Is CVE-2026-78985 being exploited?

There is no known exploitation of CVE-2026-78985 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-78985, ECHO-f133-f9d2-cf41, GHSA-jwpm-4vmf-pv72, MINI-2jj3-9fx2-c62p.

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