CVE-2021-37967: Debian Linux

Medium severity, CVSS 4.3. EPSS: 0.8% chance of exploitation in the next 30 days.

Inappropriate implementation in Background Fetch API in Google Chrome prior to 94.0.4606.54 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page.

Affected products

• Debian Debian Linux: version 10.0 only; version 11.0 only
• Fedoraproject Fedora: version 33 only; version 35 only
• Google Chrome: before 94.0.4606.54 (fixed in 94.0.4606.54)

Published 2021-10-08. Last modified 2026-06-17.