CVE-2026-87632 Cross-site scripting in Chrome

Medium 4.3 Published Updated

A remote attacker can bypass web origin policy via a crafted HTML page exploiting a cross-site scripting flaw in the SanitizerAPI.

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-2026-87632?

CVE-2026-87632 is a medium-severity cross-site scripting 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

Cross-site scripting in SanitizerAPI in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)

Weakness: CWE-79

Which versions are affected by CVE-2026-87632?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-87632?

Upgrade to a fixed version.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2026-87632 being exploited?

There is no known exploitation of CVE-2026-87632 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-87632, ECHO-d5d9-b157-7b77, GHSA-gcrp-pj35-9x65, MINI-v235-mjcj-8x5g.

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