CVE-2026-79053 Missing authorization in Chrome

Low 3.1 Published Updated

A remote attacker can bypass site isolation in Google Chrome by leveraging a compromised renderer process and social engineering 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-2026-79053?

CVE-2026-79053 is a low-severity missing authorization 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

Missing authorization in Lighthouse in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to bypass site isolation via a crafted HTML page. (Chromium security severity: Medium)

Weakness: CWE-862

Which versions are affected by CVE-2026-79053?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-79053?

Upgrade to a fixed version.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-79053 being exploited?

There is no known exploitation of CVE-2026-79053 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-79053, ECHO-e594-f459-c047, GHSA-37hg-6g4q-h66r, MINI-5vxq-9j75-mgv6.

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