Security advisory

{
  "id": "b108e1bce45750b73dc60aa42734c0a1bdc027bccdceb3763cae62cd2acfbdd2",
  "url": "https://osv.dev/vulnerability/CVE-2017-18924",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-18924",
    "summary": "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.",
    "evidence": "osv:CVE-2017-18924",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2017-18924",
      "aliases": [
        "CVE-2017-18924",
        "GHSA-2fw4-mgq9-39cx"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/oauthjs/node-oauth2-server",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "0bbdcfeaaf0d73e06acc028cd0d009eafab70817"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:oauth2-server_project:oauth2-server:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "3.1.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.1.1",
            "v3.1.0",
            "v3.0.2",
            "v3.0.0",
            "v3.0.0-b4",
            "v3.0.0-b3.1",
            "v3.0.0-b3",
            "v2.4.1",
            "v2.4.0",
            "v2.3.0",
            "v2.2.2",
            "v2.2.1",
            "v2.2.0",
            "v1.5.2",
            "v1.5.1",
            "v1.5.0",
            "v1.4.1",
            "v1.4.0",
            "v1.3.2",
            "v1.3.1",
            "v1.3.0",
            "v1.2.5",
            "v1.2.4",
            "v1.2.3",
            "v1.2.2",
            "v1.2.1",
            "v1.2.0",
            "v1.1.1",
            "v1.1.0",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-18924.json"
          }
        }
      ],
      "modified": "2026-10-20T10:48:18.841255873Z",
      "provider": "osv",
      "references": [
        "https://codeburst.io/missing-the-point-in-securing-oauth-2-0-83968708b467",
        "https://tools.ietf.org/html/rfc7636",
        "https://github.com/oauthjs/node-oauth2-server/pull/452",
        "https://github.com/oauthjs/node-oauth2-server/issues/637",
        "https://tools.ietf.org/html/draft-ietf-oauth-security-topics-15"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2017-18924",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 380274,
  "published_at": "2020-10-04T05:15:12.14+00:00"
}