CVE-2026-17882 Security feature bypass in Chrome

Medium 6.5 Published Updated

An attacker can bypass site isolation in Google Chrome by convincing a user to install a malicious extension, compromising browser security boundaries.

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-2026-17882?

CVE-2026-17882 is a medium-severity vulnerability in Google Chrome, published on 30 Jul 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

Policy bypass in Extensions in Google Chrome prior to 151.0.7922.72 allowed an attacker who convinced a user to install a malicious extension to bypass site isolation via a crafted Chrome Extension. (Chromium security severity: Medium)

Weakness: CWE-693

Which versions are affected by CVE-2026-17882?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-17882?

Upgrade to a fixed version.

Is CVE-2026-17882 being exploited?

There is no known exploitation of CVE-2026-17882 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-17882, ECHO-2e47-e706-4f78, GHSA-g3c9-mhvm-x87q, MINI-6p85-33g5-wr62.

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