Security advisory

{
  "id": "c0b009e00b51dfa9c2144d2660fbd5d7c6704f27c53e9d4510734122c60792d0",
  "url": "https://osv.dev/vulnerability/CVE-2021-3632",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-3632",
    "summary": "A flaw was found in Keycloak. This vulnerability allows anyone to register a new security device or key when there is not a device already registered for any user by using the WebAuthn password-less login flow.",
    "evidence": "osv:CVE-2021-3632",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-3632",
      "aliases": [
        "CVE-2021-3632",
        "GHSA-qpq9-jpv4-6gwr"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/keycloak/keycloak",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "843566019e09d15fa0e4778356463bc9a430e965"
                },
                {
                  "fixed": "65480cb5a11630909c086f79d396004499fbd1e4"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "15.1.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "65480cb5a11630909c086f79d396004499fbd1e4"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.4.0.Test",
            "1.3.0.Final",
            "1.1.0.Beta2",
            "1.0.0.Final",
            "1.0-final",
            "1.0-rc-1",
            "1.0-beta-4",
            "1.0-beta-2",
            "1.0-beta-1",
            "1.0-alpha-3",
            "1.0-alpha-2",
            "1.0-alpha-1",
            "1.0-alpha-1-12062013"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3632.json",
            "vanir_signatures": [
              {
                "id": "CVE-2021-3632-5fbb4664",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "118702147000229535284737376204798166263",
                    "322578119483772270387982475281248716305"
                  ]
                },
                "source": "https://github.com/keycloak/keycloak/commit/65480cb5a11630909c086f79d396004499fbd1e4",
                "target": {
                  "file": "services/src/main/java/org/keycloak/authentication/authenticators/browser/WebAuthnPasswordlessAuthenticatorFactory.java"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-24T14:18:07Z"
          }
        }
      ],
      "modified": "2026-10-24T14:18:07.730342402Z",
      "provider": "osv",
      "references": [
        "https://access.redhat.com/security/cve/CVE-2021-3632",
        "https://bugzilla.redhat.com/show_bug.cgi?id=1978196",
        "https://issues.redhat.com/browse/KEYCLOAK-18500",
        "https://github.com/keycloak/keycloak/commit/65480cb5a11630909c086f79d396004499fbd1e4",
        "https://github.com/keycloak/keycloak/pull/8203"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:redhat:single_sign-on:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "redhat:single_sign-on",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "7.4"
                  },
                  {
                    "fixed": "7.4.9"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "redhat:single_sign-on",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "7.0"
                  },
                  {
                    "last_affected": "7.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-3632",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 443449,
  "published_at": "2022-08-26T16:15:09.11+00:00"
}