CVE-2013-4457

The Cocaine gem 0.4.0 through 0.5.2 for Ruby allows context-dependent attackers to execute arbitrary commands via a crafted has object, related to recursive variable interpolation.

Date published : 2013-11-02

https://github.com/thoughtbot/cocaine/blob/master/NEWS.md

http://www.openwall.com/lists/oss-security/2013/10/22/10