CVE-2026-17686 Security feature bypass in Chrome

High 8.1 Published Updated

A remote attacker with compromised renderer access can bypass site isolation in Google Chrome via a crafted HTML page.

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-2026-17686?

CVE-2026-17686 is a high-severity 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 Passwords in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: High)

Weakness: CWE-20

Which versions are affected by CVE-2026-17686?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-17686?

Upgrade to a fixed version.

Is CVE-2026-17686 being exploited?

There is no known exploitation of CVE-2026-17686 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-17686, ECHO-84d4-4c4e-bd16, GHSA-v45v-wj9p-hx85, MINI-c5g9-xcgr-3388.

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