{"id":"CVE-2017-18924","aliases":["GHSA-2fw4-mgq9-39cx"],"url":"https://o3.security/vulnerability/CVE-2017-18924","summary":"Code Injection in oauth2-server","details":"oauth2-server (aka node-oauth2-server) through 3.1.1 implements OAuth 2.0 without PKCE. It does not prevent authorization code injection. This is similar to CVE-2020-7692. NOTE: the vendor states 'As RFC7636 is an extension, I think the claim in the Readme of \"RFC 6749 compliant\" is valid and not misleading and I also therefore wouldn't describe this as a \"vulnerability\" with the library per se.","published":"2020-10-04T05:15:12.140Z","modified":"2026-07-08T15:11:03.672833Z","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":2,"affectedPackages":[{"ecosystem":"npm","name":"oauth2-server","fixedVersion":null}],"fix":{"url":"https://github.com/oauthjs/node-oauth2-server/pull/452","label":"oauthjs/node-oauth2-server#452"},"references":[{"type":"ADVISORY","url":"https://codeburst.io/missing-the-point-in-securing-oauth-2-0-83968708b467"},{"type":"ADVISORY","url":"https://tools.ietf.org/html/rfc7636"},{"type":"FIX","url":"https://github.com/oauthjs/node-oauth2-server/pull/452"},{"type":"EVIDENCE","url":"https://github.com/oauthjs/node-oauth2-server/issues/637"},{"type":"EVIDENCE","url":"https://tools.ietf.org/html/draft-ietf-oauth-security-topics-15"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-18924"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T15:11:03.672833Z"}}