CVE-2026-87563 Other in Chrome

Medium 4.3 Published Updated

A remote attacker can obtain cross-origin data via a crafted HTML page due to an origin validation error in Chrome's Paint 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-2026-87563?

CVE-2026-87563 is a medium-severity vulnerability in Google Chrome, published on 9 Sep 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

Origin validation error in Paint in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to obtain cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

Weakness: CWE-346

Which versions are affected by CVE-2026-87563?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-87563?

Upgrade to a fixed version.

Is CVE-2026-87563 being exploited?

There is no known exploitation of CVE-2026-87563 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-87563, ECHO-1ca5-0895-5f3a, GHSA-vg7r-fpqr-4xpq, MINI-95rg-xv7q-f9cg.

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