{"id":"CVE-2026-59255","title":"BloodHound through 9.4.0, fixed in commit 8f79035, contains a missing authorization vulnerability in the custom-nodes API endpoints that allows any authenticated user to modify the global graph schema","summary":"BloodHound through 9.4.0, fixed in commit 8f79035, contains a missing authorization vulnerability in the custom-nodes API endpoints that allows any authenticated user to modify the global graph schema. Attackers with valid session tokens…","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L","cwe":["CWE-862"],"vendor":"SpecterOps","product":"BloodHound","affected":["BloodHound <= 9.4.0"],"published":"2026-07-15","updated":"2026-09-17","sourceUpdated":"2026-09-17T18:16:53.290","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-59255","references":[{"url":"https://github.com/SpecterOps/BloodHound/commit/8f790351349fd87bcb04377aba84cba6495825b3","label":"disclosure@vulncheck.com"},{"url":"https://github.com/SpecterOps/BloodHound/issues/2910","label":"disclosure@vulncheck.com"},{"url":"https://github.com/SpecterOps/BloodHound/pull/2989","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/bloodhound-missing-authorization-on-custom-node-management-api","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-07-15T18:03:35.694495Z"},"epss":0.00439,"epssPercentile":0.37617,"ingestedAt":"2026-09-17T18:25:15.977Z","slug":"CVE-2026-59255","body":"## Overview\n\nBloodHound through 9.4.0, fixed in commit 8f79035, contains a missing authorization vulnerability in the custom-nodes API endpoints that allows any authenticated user to modify the global graph schema. Attackers with valid session tokens can create, update, or delete custom node types affecting all users and tenants by invoking unprotected POST, PUT, and DELETE operations on the custom-nodes endpoints.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":51,"depthScoreParts":{"impact":39.1,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}