The paranoid2 gem 1.1.6 for Ruby, as distributed on RubyGems.org, included a code-execution backdoor inserted by a third party. The current version, without this backdoor, is 1.1.5.
{ "nvd_published_at": "2019-07-14T16:15:00Z", "cwe_ids": [ "CWE-829" ], "severity": "CRITICAL", "github_reviewed": true, "github_reviewed_at": "2019-07-15T23:22:39Z" }