From ${URL} : Object leak vulnerability for wildcard controller routes in Action Pack There is an object leak vulnerability for wildcard controllers in Action Pack. This vulnerability has been assigned the CVE identifier CVE-2015-7581. Versions Affected: >= 4.0.0 and < 5.0.0.beta1 Not affected: < 4.0.0, 5.0.0.beta1 and newer Fixed Versions: 4.2.5.1, 4.1.14.1 Impact ------ Users that have a route that contains the string ":controller" are susceptible to objects being leaked globally which can lead to unbounded memory growth. To identify if your application is vulnerable, look for routes that contain ":controller". Internally, Action Pack keeps a map of "url controller name" to "controller class name". This map is cached globally, and is populated even if the controller class doesn't actually exist. @maintainer(s): since the fixed version is already in the tree, please remove the affected versions.
Vulnerable versions for Rails 4.1 and 4.2 have been removed.
Cleanup complete per previous comments.