CVE-2026-13919 Security feature bypass in Chrome

Medium 6.5 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-2026-13919?

CVE-2026-13919 is a medium-severity vulnerability in Google Chrome, published on 30 Jun 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 policy enforcement in Extensions in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: Medium)

Weakness: CWE-602

Which versions are affected by CVE-2026-13919?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-13919?

Upgrade to a fixed version.

Is CVE-2026-13919 being exploited?

There is no known exploitation of CVE-2026-13919 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-13919, ECHO-74c9-0fde-a62d, GHSA-5r9j-qw98-xg49, MINI-pp6m-jrhc-7w5m.

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