CVE-2021-38000 Google Chromium Intents Improper Input Validation

Exploited in the wild Medium 6.1 Published 23 Nov 2021 Updated 21 Oct 2025

Remote attackers can redirect users to malicious URLs via crafted HTML pages due to insufficient input validation in Android Chrome intents.

Exploited in the wild: Since 3 Nov 2021
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2021-38000?

CVE-2021-38000 is a medium-severity vulnerability in Debian Debian Linux, published on 23 Nov 2021. 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

Insufficient validation of untrusted input in Intents in Google Chrome on Android prior to 95.0.4638.69 allowed a remote attacker to arbitrarily browser to a malicious URL via a crafted HTML page.

Weakness: CWE-601, CWE-20

Which versions are affected by CVE-2021-38000?

It affects 3 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Google Chrome.

How do I fix CVE-2021-38000?

Upgrade to a fixed version. US federal agencies must fix it by 17 Nov 2021.

Is CVE-2021-38000 being exploited?

Yes. Attackers have exploited CVE-2021-38000 in the wild since at least 3 Nov 2021.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2021-38000, GHSA-xrj7-4gfh-q9h7, UBUNTU-CVE-2021-38000.