An issue was discovered in RubyGems 2.6 and later through 3.0.2. Since Gem::CommandManager#run calls alert_error without escaping, escape sequence injection is possible. (There are many ways to cause an error.)
{ "nvd_published_at": null, "cwe_ids": [ "CWE-74" ], "severity": "HIGH", "github_reviewed": true, "github_reviewed_at": "2019-06-20T16:04:35Z" }