CVE-2021-22942: Rubyonrails Rails

Medium severity, CVSS 6.1. EPSS: 1.7% chance of exploitation in the next 30 days.

A possible open redirect vulnerability in the Host Authorization middleware in Action Pack >= 6.0.0 that could allow attackers to redirect users to a malicious website.

Affected products

• Rubyonrails Rails: from 6.0.0, before 6.0.4.1 (fixed in 6.0.4.1); from 6.1.0, before 6.1.4.1 (fixed in 6.1.4.1)

Published 2021-10-18. Last modified 2026-06-17.