CVE-2026-17927 Information disclosure in Chrome

Medium 4.3 Published Updated

An attacker can leak cross-origin data by tricking a user into installing a malicious Chrome extension due to insufficient policy enforcement in DevTools.

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-2026-17927?

CVE-2026-17927 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

Insufficient policy enforcement in DevTools in Google Chrome prior to 151.0.7922.72 allowed an attacker who convinced a user to install a malicious extension to leak cross-origin data via a crafted Chrome Extension. (Chromium security severity: Low)

Weakness: CWE-346

Which versions are affected by CVE-2026-17927?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-17927?

Upgrade to a fixed version.

Is CVE-2026-17927 being exploited?

There is no known exploitation of CVE-2026-17927 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-17927, ECHO-7614-c970-af0b, GHSA-74qq-x56m-pf89, MINI-c384-j63r-q6r6.

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