CVE-2008-7311
The session cookie store implementation in Spree 0.2.0 uses a hardcoded config.action_controller_session hash value (aka secret key), which makes it easier for remote attackers to bypass cryptographic protection mechanisms by leveraging an application that contains this value within the config/environment.rb file.
Date published : 2012-04-04
http://spreecommerce.com/blog/2008/08/12/security-vulernability-session-cookie-store/