CVE-2026-17991 Other in Chrome

Critical 9.6 Published Updated

A remote attacker with compromised renderer access can escape the sandbox via a crafted HTML page in Google Chrome.

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-2026-17991?

CVE-2026-17991 is a critical vulnerability in Google Chrome, published on 30 Jul 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

Insufficient validation of untrusted input in AI in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Low)

Weakness: CWE-20

Which versions are affected by CVE-2026-17991?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-17991?

Upgrade to a fixed version.

Is CVE-2026-17991 being exploited?

There is no known exploitation of CVE-2026-17991 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-17991, ECHO-bd76-69b6-c52b, GHSA-c4r5-cggq-5cfm, MINI-m47f-hc8v-4m3h.

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