{"id":"CVE-2020-8161","aliases":["GHSA-5f9h-9pjv-v6j7"],"url":"https://o3.security/vulnerability/CVE-2020-8161","summary":"Directory traversal in Rack::Directory app bundled with Rack","details":"A directory traversal vulnerability exists in rack < 2.2.0 that allows an attacker perform directory traversal vulnerability in the Rack::Directory app that is bundled with Rack which could result in information disclosure.","published":"2020-07-02T19:15:12.357Z","modified":"2026-10-24T10:30:41.152031929Z","cvss":{"score":8.6,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"RubyGems","name":"rack","fixedVersion":"2.1.3"}],"fix":{"url":"https://github.com/rack/rack/commit/dddb7ad18ed79ca6ab06ccc417a169fde451246e","label":"rack/rack@dddb7ad"},"references":[{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2020/07/msg00006.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2023/01/msg00038.html"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4561-1/"},{"type":"REPORT","url":"https://hackerone.com/reports/434404"},{"type":"FIX","url":"https://groups.google.com/g/rubyonrails-security/c/IOO1vNZTzPA"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8161"},{"type":"WEB","url":"https://github.com/rack/rack/commit/dddb7ad18ed79ca6ab06ccc417a169fde451246e"},{"type":"PACKAGE","url":"https://github.com/rack/rack"},{"type":"WEB","url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2020-8161.yml"},{"type":"WEB","url":"https://groups.google.com/forum/#!topic/ruby-security-ann/T4ZIsfRf2eA"},{"type":"WEB","url":"https://usn.ubuntu.com/4561-1"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-24T10:30:41.152031929Z"}}