CVE-2011-0449: Rubyonrails Rails

High severity, CVSS 7.5. EPSS: 2.5% chance of exploitation in the next 30 days.

actionpack/lib/action_view/template/resolver.rb in Ruby on Rails 3.0.x before 3.0.4, when a case-insensitive filesystem is used, does not properly implement filters associated with the list of available templates, which allows remote attackers to bypass intended access restrictions via an action name that uses an unintended case for alphabetic characters.

Affected products

• Rubyonrails Rails: version 3.0.0 only; version 3.0.1 only; version 3.0.2 only; version 3.0.3 only; version 3.0.4 only

Published 2011-02-21. Last modified 2026-06-16.