Security advisory

{
  "id": "4f73db200e1666c796153ea3dacdc557b90bb7f479a5b01bad462dc9d012b0e5",
  "url": "https://osv.dev/vulnerability/CVE-2018-20587",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-20587",
    "summary": "Bitcoin Core 0.12.0 through 0.17.1 and Bitcoin Knots 0.12.0 through 0.17.x before 0.17.1.knots20181229 have Incorrect Access Control. Local users can exploit this to steal currency by binding the RPC IPv4 localhost port, and forwarding requests to the IPv6 localhost port.",
    "evidence": "osv:CVE-2018-20587",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-20587",
      "aliases": [
        "CVE-2018-20587"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/bitcoin/bitcoin",
              "type": "GIT",
              "events": [
                {
                  "introduced": "188ca9c305d3dd0fb462b9d6a44048b1d99a05f3"
                },
                {
                  "last_affected": "ef70f9b52b851c7997a9f1a0834714e3eebc1fd8"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:bitcoin:bitcoin_core:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.12.0"
                      },
                      {
                        "last_affected": "0.17.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-20587.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:46.161277545Z",
      "provider": "osv",
      "references": [
        "https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures#CVE-2018-20587",
        "https://medium.com/%40lukedashjr/cve-2018-20587-advisory-and-full-disclosure-a3105551e78b"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:bitcoinknots:bitcoin_knots:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "bitcoinknots:bitcoin_knots",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0.12.0"
                  },
                  {
                    "last_affected": "0.17.0"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-20587",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 436270,
  "published_at": "2019-02-11T12:29:00.25+00:00"
}