Vulnerability DatabaseCVE-2026-59255
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CVE-2026-59255
Published:July 15, 2026
Updated:August 04, 2026
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 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.
Related Resources (7)
https://github.com/SpecterOps/BloodHound
https://github.com/SpecterOps/BloodHound/commit/8f790351349fd87bcb04377aba84cba6495825b3
https://github.com/SpecterOps/BloodHound/issues/2910
https://www.vulncheck.com/advisories/bloodhound-missing-authorization-on-custom-node-management-api
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59255.json
https://github.com/SpecterOps/BloodHound/pull/2989
https://nvd.nist.gov/vuln/detail/CVE-2026-59255
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CVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
LOW
Weakness Type (CWE)
Missing Authorization
CWE-862
EPSS
Base Score:
0.25