{"cve":"CVE-2017-18924","nvd":{"published":"2020-10-04T05:15:12.140","modified":"2026-06-17T01:13:50.523","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-94"],"references":["https://codeburst.io/missing-the-point-in-securing-oauth-2-0-83968708b467","https://github.com/oauthjs/node-oauth2-server/issues/637","https://github.com/oauthjs/node-oauth2-server/pull/452","https://tools.ietf.org/html/draft-ietf-oauth-security-topics-15","https://tools.ietf.org/html/rfc7636"],"products":["oauth2-server_project:oauth2-server"],"source":"nvd","synced_at":"2026-10-19T21:09:53.489947993+00:00"},"epss":{"cve":"CVE-2017-18924","score":0.0219,"percentile":0.82437,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-2fw4-mgq9-39cx","url":"https://osv.dev/vulnerability/GHSA-2fw4-mgq9-39cx","summary":"Code Injection in oauth2-server","modified":"2023-11-08T03:59:16.711691Z","packages":[{"ecosystem":"npm","name":"oauth2-server","purl":"pkg:npm/oauth2-server","ranges":["<=3.1.1"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}