CVE-2026-9124 Information disclosure in Chrome

Medium 5.3 Published Updated

A remote attacker with compromised renderer access can leak cross-origin data via a crafted HTML page in Google Chrome.

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-2026-9124?

CVE-2026-9124 is a medium-severity vulnerability in Google Chrome, published on 20 May 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 validation of untrusted input in Input in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

Weakness: CWE-20

Which versions are affected by CVE-2026-9124?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-9124?

Upgrade to a fixed version.

Is CVE-2026-9124 being exploited?

There is no known exploitation of CVE-2026-9124 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-9124, ECHO-68c9-01da-b460, GHSA-xjvj-qvp3-h2cg, MINI-h58m-vgfq-32xm.

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