CVE-2026-106359 Security feature bypass in Chrome

Medium 4.3 Published Updated

A confused deputy flaw in Chrome allows remote attackers to bypass web origin policy 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-2026-106359?

CVE-2026-106359 is a medium-severity vulnerability in Google Chrome, published on 6 Oct 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

Confused deputy in DeviceBoundSessionCredentials in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Low)

Weakness: CWE-441

Which versions are affected by CVE-2026-106359?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-106359?

Upgrade to a fixed version.

Is CVE-2026-106359 being exploited?

There is no known exploitation of CVE-2026-106359 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-106359, ECHO-fec4-53e9-e290, GHSA-g3v7-wppm-f23m, MINI-r2qh-q553-xv5c.

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