Security advisory

{
  "id": "a247914fd8db11fb94db7726bfcadc6d7bfb51b3bd8c5408058b07c75bf95085",
  "url": "https://osv.dev/vulnerability/CVE-2021-21329",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-21329",
    "summary": "RATCF is an open-source framework for hosting Cyber-Security Capture the Flag events. In affected versions of RATCF users with multi factor authentication enabled are able to log in without a valid token. This is fixed in commit cebb67b.",
    "evidence": "osv:CVE-2021-21329",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-21329",
      "aliases": [
        "CVE-2021-21329",
        "GHSA-fw57-f7mq-9q85"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/ractf/core",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "cebb67b"
                },
                {
                  "last_affected": "cebb67b"
                },
                {
                  "fixed": "c57a4d186bfc586ad3edfe4dcba9f11efbf22f09"
                },
                {
                  "fixed": "cebb67bd16a8296121201805332365ffccb29638"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "cebb67b"
                      }
                    ],
                    "source": "DESCRIPTION"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "cebb67b"
                      }
                    ],
                    "source": "DESCRIPTION"
                  },
                  {
                    "range": [
                      {
                        "fixed": "c57a4d186bfc586ad3edfe4dcba9f11efbf22f09"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "cebb67bd16a8296121201805332365ffccb29638"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-21329.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:28.160083272Z",
      "provider": "osv",
      "references": [
        "https://github.com/ractf/core/commit/c57a4d186bfc586ad3edfe4dcba9f11efbf22f09#diff-60c444c47c061306f2dff5bf97c07810f40f949a8e94ecbb609b6b29364c8642R130-R152",
        "https://github.com/ractf/core/commit/cebb67bd16a8296121201805332365ffccb29638",
        "https://github.com/ractf/core/security/advisories/GHSA-fw57-f7mq-9q85"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:ratcf:ratcf:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "ratcf:ratcf",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "2021-02-26"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-21329",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385405,
  "published_at": "2021-03-08T18:15:13.71+00:00"
}