{"id":"CVE-2017-18076","aliases":["GHSA-9pr6-grf4-x2fr"],"url":"https://o3.security/vulnerability/CVE-2017-18076","summary":"Omniauth allows POST parameters to be stored in session","details":"In strategy.rb in OmniAuth before 1.3.2, the authenticity_token value is improperly protected because POST (in addition to GET) parameters are stored in the session and become available in the environment of the callback phase.","published":"2018-01-26T19:29:00.260Z","modified":"2026-07-08T05:49:53.510302401Z","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":0,"affectedPackages":[{"ecosystem":"RubyGems","name":"omniauth","fixedVersion":"1.3.2"}],"fix":{"url":"https://github.com/omniauth/omniauth/pull/867","label":"omniauth/omniauth#867"},"references":[{"type":"ADVISORY","url":"https://www.debian.org/security/2018/dsa-4109"},{"type":"REPORT","url":"https://bugs.debian.org/888523"},{"type":"FIX","url":"https://github.com/omniauth/omniauth/pull/867"},{"type":"FIX","url":"https://github.com/omniauth/omniauth/pull/867/commits/71866c5264122e196847a3980c43051446a03e9b"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:49:53.510302401Z"}}