CVE-2019-5864: Google Chrome

Medium severity, CVSS 4.3. EPSS: 0.5% chance of exploitation in the next 30 days.

Insufficient data validation in CORS in Google Chrome prior to 76.0.3809.87 allowed an attacker who convinced a user to install a malicious extension to bypass content security policy via a crafted Chrome Extension.

Affected products

• Google Chrome: before 76.0.3809.87 (fixed in 76.0.3809.87)

Published 2019-11-25. Last modified 2026-06-17.