CVE-2026-79261 Security feature bypass in Chrome

Medium 4.3 Published Updated

A remote attacker can bypass web origin policy in Google Chrome via a crafted HTML page due to incorrect authorization in Controls.

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-2026-79261?

CVE-2026-79261 is a medium-severity 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 authorization in Controls in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Low)

Weakness: CWE-863

Which versions are affected by CVE-2026-79261?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-79261?

Upgrade to a fixed version.

Is CVE-2026-79261 being exploited?

There is no known exploitation of CVE-2026-79261 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-79261, ECHO-7b9b-7a49-05a3, GHSA-x9x7-mwvx-fq55, MINI-82pq-55xh-wmv6.

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