actionpack/lib/action_view/lookup_context.rb
in Action View in Ruby on Rails 3.x before 3.2.16 and 4.x before 4.0.2 allows remote attackers to cause a denial of service (memory consumption) via a header containing an invalid MIME type that leads to excessive caching.
{ "nvd_published_at": "2013-12-07T00:55:03Z", "cwe_ids": [ "CWE-20" ], "severity": "MODERATE", "github_reviewed": true, "github_reviewed_at": "2020-06-16T21:46:47Z" }