CVE-2021-30555: Google Chrome

High severity, CVSS 8.8. EPSS: 1.4% chance of exploitation in the next 30 days.

Use after free in Sharing in Google Chrome prior to 91.0.4472.114 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page and user gesture.

Affected products

• Google Chrome: before 91.0.4472.114 (fixed in 91.0.4472.114)

Published 2021-07-02. Last modified 2026-06-17.