{"id":"CVE-2020-8164","aliases":["GHSA-8727-m6gj-mc37"],"url":"https://o3.security/vulnerability/CVE-2020-8164","summary":"Possible Strong Parameters Bypass in ActionPack","details":"A deserialization of untrusted data vulnerability exists in rails < 5.2.4.3, rails < 6.0.3.1 which can allow an attacker to supply information can be inadvertently leaked fromStrong Parameters.","published":"2020-06-19T17:15:18.677Z","modified":"2026-08-07T11:31:19.883487612Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"RubyGems","name":"actionpack","fixedVersion":"5.2.4.3"},{"ecosystem":"RubyGems","name":"actionpack","fixedVersion":"6.0.3.1"}],"fix":null,"references":[{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00089.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00093.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00107.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2020/06/msg00022.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2020/07/msg00013.html"},{"type":"ADVISORY","url":"https://www.debian.org/security/2020/dsa-4766"},{"type":"FIX","url":"https://groups.google.com/g/rubyonrails-security/c/f6ioe4sdpbY"},{"type":"FIX","url":"https://hackerone.com/reports/292797"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:31:19.883487612Z"}}