{"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":"2026-07-08T05:54:13.172308546Z","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":null,"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"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:54:13.172308546Z"}}