CVE-2020-8167: Debian Linux

Medium severity, CVSS 6.5. EPSS: 1.5% chance of exploitation in the next 30 days.

A CSRF vulnerability exists in rails <= 6.0.3 rails-ujs module that could allow attackers to send CSRF tokens to wrong domains.

Affected products

• Debian Debian Linux: version 10.0 only
• Rubyonrails Rails: before 5.2.4.3 (fixed in 5.2.4.3); from 6.0.0, before 6.0.3.1 (fixed in 6.0.3.1)

Published 2020-06-19. Last modified 2026-06-17.