SpecterOps BloodHound Graph Write Endpoint v2.go NewV2API improper authorization

{
  "id": "a76d2a6088740186daaade8a18532c4d91019d86d9c677487a60235f61a0c50d",
  "url": "https://osv.dev/vulnerability/CVE-2026-85241",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "SpecterOps BloodHound Graph Write Endpoint v2.go NewV2API improper authorization",
    "summary": "A weakness has been identified in SpecterOps BloodHound up to 9.5.1. The affected element is the function NewV2API of the file cmd/api/src/api/registration/v2.go of the component Graph Write Endpoint. Executing a manipulation can lead to improper authorization. It is possible to launch the attack remotely. Upgrading to version 9.6.0-rc1, 9.6.0 and 9.7.0-rc3 is sufficient to fix this issue. This patch is called 39d1276a63e95a7713f954dea632a19651d9cebb. You should upgrade the affected component.",
    "evidence": "osv:CVE-2026-85241",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-85241",
      "aliases": [
        "CVE-2026-85241"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/specterops/bloodhound",
              "type": "GIT",
              "events": [
                {
                  "introduced": "b0345aed8c17e121b5a8412f898b00adfdcdc772"
                },
                {
                  "fixed": "39d1276a63e95a7713f954dea632a19651d9cebb"
                },
                {
                  "fixed": "89e6d6555a6174d529c74aeb732eb47d762f0c44"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "9.0.0"
                      },
                      {
                        "last_affected": "9.0.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "9.1.0"
                      },
                      {
                        "last_affected": "9.1.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "9.2.2"
                      },
                      {
                        "last_affected": "9.2.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "9.4.0"
                      },
                      {
                        "last_affected": "9.4.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "9.5.0"
                      },
                      {
                        "last_affected": "9.5.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "9.5.1"
                      },
                      {
                        "last_affected": "9.5.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "fixed": "39d1276a63e95a7713f954dea632a19651d9cebb"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "89e6d6555a6174d529c74aeb732eb47d762f0c44"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v9.6.0-rc1"
                  }
                ]
              }
            }
          ],
          "versions": [
            "9.0.0",
            "9.1.0",
            "9.2.2",
            "9.4.0",
            "9.5.0",
            "9.5.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-85241.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:26.851312906Z",
      "provider": "osv",
      "references": [
        "https://github.com/SpecterOps/BloodHound/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85241.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-85241",
        "https://vuldb.com/cve/CVE-2026-85241",
        "https://vuldb.com/submit/894488",
        "https://vuldb.com/vuln/398471",
        "https://vuldb.com/vuln/398471/cti",
        "https://github.com/SpecterOps/BloodHound/commit/39d1276a63e95a7713f954dea632a19651d9cebb",
        "https://github.com/SpecterOps/BloodHound/releases/tag/v9.6.0-rc1"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-266",
          "CWE-285"
        ],
        "cna_assigner": "VulDB",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85241.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-85241",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 493418,
  "published_at": "2026-09-03T22:30:14.587+00:00"
}