Security advisory

{
  "id": "5022a04c2cebb7c50fd6c403dda6489108341bc18af0ced52aae6e2a933f905a",
  "url": "https://osv.dev/vulnerability/CVE-2021-38299",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-38299",
    "summary": "Webauthn Framework 3.3.x before 3.3.4 has Incorrect Access Control. An attacker that controls a user's system is able to login to a vulnerable service using an attached FIDO2 authenticator without passing a check of the user presence.",
    "evidence": "osv:CVE-2021-38299",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-38299",
      "aliases": [
        "CVE-2021-38299",
        "GHSA-6whf-q6p5-84wg"
      ],
      "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/web-auth/webauthn-framework",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "705a487ee31e88a7abd2546abf4144aa52722a97"
                },
                {
                  "introduced": "b16d567e9a82a84cd7981872b67a58e45562f220"
                },
                {
                  "fixed": "572e239c5702667ca52487faf861abc768a46308"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:spomky-labs:webauthn_framwork:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.2.9"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:spomky-labs:webauthn_framwork:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.3.0"
                      },
                      {
                        "fixed": "3.3.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.3.3",
            "v3.3.2",
            "v3.3.1",
            "v3.3.0",
            "v3.2.8",
            "v3.2.7",
            "v3.2.6",
            "v3.2.5",
            "v3.2.4",
            "v3.2.3",
            "v3.2.2",
            "v3.2.1",
            "v3.2.0",
            "v3.0.2",
            "v3.0.1",
            "v3.0.0",
            "v2.1.7",
            "v2.1.6",
            "v2.1.5",
            "v2.1.4",
            "v2.1.3",
            "v2.1.2",
            "v2.1.1",
            "v2.1.0",
            "v2.0.3",
            "v2.0.2",
            "v2.0.1",
            "v2.0.0",
            "v2.0.0-alpha1",
            "v1.1.0",
            "v1.1.0-alpha1",
            "v1.0.1",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-38299.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:52.313156110Z",
      "provider": "osv",
      "references": [
        "https://github.com/web-auth/webauthn-framework/releases",
        "https://www.fzi.de/en/news/news/detail-en/artikel/fsa-2021-1-fehlende-ueberpruefung-von-user-presence-in-webauthn-framework/"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-38299",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 386316,
  "published_at": "2021-09-27T06:15:07.91+00:00"
}