CVE-2026-11246 Security feature bypass in Chrome

Medium 5.3 Published Updated

A remote attacker with compromised renderer access can bypass same-origin policy 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-2026-11246?

CVE-2026-11246 is a medium-severity vulnerability in Google Chrome, published on 4 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 validation of untrusted input in IndexedDB in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to bypass same origin policy via a crafted HTML page. (Chromium security severity: Low)

Weakness: CWE-20

Which versions are affected by CVE-2026-11246?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-11246?

Upgrade to a fixed version.

Is CVE-2026-11246 being exploited?

There is no known exploitation of CVE-2026-11246 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-11246, ECHO-7a2c-dd72-eec1, GHSA-q633-h8hg-5mvc, MINI-f24x-77wp-wccx.

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