CVE-2021-21185: Debian Linux

Medium severity, CVSS 4.3. EPSS: 1.3% chance of exploitation in the next 30 days.

Insufficient policy enforcement in extensions in Google Chrome prior to 89.0.4389.72 allowed an attacker who convinced a user to install a malicious extension to obtain sensitive information via a crafted Chrome Extension.

Affected products

• Debian Debian Linux: version 10.0 only
• Fedoraproject Fedora: version 32 only; version 33 only; version 34 only
• Google Chrome: before 89.0.4389.72 (fixed in 89.0.4389.72)

Published 2021-03-09. Last modified 2026-06-17.