CVE-2026-79252 Information disclosure in Chrome

Medium 4.3 Published Updated

A remote attacker can obtain cross-origin data via a crafted HTML page due to an information leak in the ServiceWorker component.

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-2026-79252?

CVE-2026-79252 is a medium-severity vulnerability in Google Chrome, published on 25 Aug 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

Information leak in ServiceWorker in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to obtain cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

Weakness: CWE-200

Which versions are affected by CVE-2026-79252?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-79252?

Upgrade to a fixed version.

Is CVE-2026-79252 being exploited?

There is no known exploitation of CVE-2026-79252 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-79252, ECHO-f312-3469-50a5, GHSA-4fvf-46cq-3pw2, MINI-xf3r-4qqf-m282.

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