{"id":"CVE-2019-18409","aliases":["GHSA-hhwc-8g49-j8jx"],"url":"https://o3.security/vulnerability/CVE-2019-18409","summary":"Ruby_parser-legacy Incorrect Permission Assignment for Critical Resource","details":"The ruby_parser-legacy (aka legacy) gem 1.0.0 for Ruby allows local privilege escalation because of world-writable files. For example, if the brakeman gem (which has a legacy dependency) 4.5.0 through 4.7.0 is used, a local user can insert malicious code into the ruby_parser-legacy-1.0.0/lib/ruby_parser/legacy/ruby_parser.rb file.","published":"2019-10-24T14:15:11.583Z","modified":"2026-07-08T17:18:15.090492Z","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"RubyGems","name":"ruby_parser-legacy","fixedVersion":null}],"fix":null,"references":[{"type":"REPORT","url":"https://github.com/zenspider/ruby_parser-legacy/issues/1"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T17:18:15.090492Z"}}