CVE-2025-5064 Information disclosure in Chrome

Medium 5.4 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-2025-5064?

CVE-2025-5064 is a medium-severity vulnerability in Google Chrome, published on 27 May 2025. 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 137.0.7151.55 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

Weakness: CWE-200

Which versions are affected by CVE-2025-5064?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2025-5064?

Upgrade to a fixed version.

Is CVE-2025-5064 being exploited?

There is no known exploitation of CVE-2025-5064 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2025-5064, GHSA-4g9c-v26v-gp27.

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