CVE-2026-1504 Information disclosure in Chrome

Medium 6.5 Published Updated

A remote attacker can leak cross-origin data via a crafted HTML page due to an inappropriate implementation in the Background Fetch API.

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-2026-1504?

CVE-2026-1504 is a medium-severity vulnerability in Google Chrome, published on 27 Jan 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

Inappropriate implementation in Background Fetch API in Google Chrome prior to 144.0.7559.110 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)

Which versions are affected by CVE-2026-1504?

It affects 1 product.

Linux distribution packages (1)
chromium openSUSE:TumbleweedAll versions144.0.7559.109-1.1

Products include Google Chrome.

How do I fix CVE-2026-1504?

Upgrade to a fixed version.

Is CVE-2026-1504 being exploited?

There is no known exploitation of CVE-2026-1504 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-1504, DSA-6116-1, GHSA-m6qv-96fg-92g8, MINI-555j-g686-xvq5, openSUSE-SU-2026:10121-1.

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