CVE-2026-106260 Information disclosure in Chrome

Medium 4.3 Published Updated

A remote attacker can leak cross-origin data via a crafted HTML page exploiting incorrect authorization in Chrome 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-2026-106260?

CVE-2026-106260 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

Incorrect authorization in DevTools in Google Chrome prior to 155.0.8059.39 allowed a remote attacker leveraging social engineering to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)

Weakness: CWE-863

Which versions are affected by CVE-2026-106260?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-106260?

Upgrade to a fixed version.

Is CVE-2026-106260 being exploited?

There is no known exploitation of CVE-2026-106260 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-106260, ECHO-0a7e-3cd1-3468, GHSA-wr88-c87q-cf3h, MINI-g7c5-7vpq-h684.

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