{"cve":"CVE-2019-18409","nvd":{"published":"2019-10-24T14:15:11.583","modified":"2026-06-17T02:24:58.910","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-732"],"references":["https://github.com/zenspider/ruby_parser-legacy/issues/1","https://github.com/zenspider/ruby_parser-legacy/issues/1"],"products":["zenspider:ruby_parser-legacy"],"source":"nvd","synced_at":"2026-10-19T20:59:10.855360465+00:00"},"epss":{"cve":"CVE-2019-18409","score":0.00332,"percentile":0.26425,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-hhwc-8g49-j8jx","url":"https://osv.dev/vulnerability/GHSA-hhwc-8g49-j8jx","summary":"Ruby_parser-legacy Incorrect Permission Assignment for Critical Resource","modified":"2024-02-16T08:19:58.081155Z","packages":[{"ecosystem":"RubyGems","name":"ruby_parser-legacy","purl":"pkg:gem/ruby_parser-legacy","ranges":["<=1.0.0"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}