CVE-2021-30520: Fedoraproject Fedora

High severity, CVSS 8.8. EPSS: 0.9% chance of exploitation in the next 30 days.

Use after free in Tab Strip in Google Chrome prior to 90.0.4430.212 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.

Affected products

• Fedoraproject Fedora: version 33 only; version 34 only
• Google Chrome: before 90.0.4430.212 (fixed in 90.0.4430.212)

Published 2021-06-04. Last modified 2026-06-17.