Security advisory

{
  "id": "b37fe790fe0f4ef34bf5f6e26971ebc1db63d934703039e61757f50a93edf4cd",
  "url": "https://osv.dev/vulnerability/CVE-2020-5232",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-5232",
    "summary": "A user who owns an ENS domain can set a trapdoor, allowing them to transfer ownership to another user, and later regain ownership without the new owners consent or awareness. A new ENS deployment is being rolled out that fixes this vulnerability in the ENS registry.",
    "evidence": "osv:CVE-2020-5232",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-5232",
      "aliases": [
        "CVE-2020-5232",
        "GHSA-8f9f-pc5v-9r5h"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/ensdomains/ens",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "36e10e71fcddcade88646821e0a57cc6c19e1ecf"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "fixed": "36e10e71fcddcade88646821e0a57cc6c19e1ecf"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.3.0",
            "v0.2.2",
            "mainnet",
            "ropsten"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-5232.json"
          }
        }
      ],
      "modified": "2026-10-24T10:50:39.604232950Z",
      "provider": "osv",
      "references": [
        "https://github.com/ensdomains/ens/security/advisories/GHSA-8f9f-pc5v-9r5h",
        "https://github.com/ensdomains/ens/commit/36e10e71fcddcade88646821e0a57cc6c19e1ecf"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:ens.domains:ethereum_name_service:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "ens.domains:ethereum_name_service",
            "extracted_events": [
              {
                "range": [
                  {
                    "last_affected": "0.1.0"
                  },
                  {
                    "last_affected": "0.1.0"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-5232",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 442422,
  "published_at": "2020-01-31T00:15:09.973+00:00"
}