CVE-2026-59255
HIGHBloodHound Missing Authorization on Custom Node Management API
Title source: cnaDescription
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.
References (4)
Core 4
Core References
Exploit technical-description
exploit
Researcher Disclosure
https://github.com/SpecterOps/BloodHound/issues/2910
Patch patch
Patch Commit
https://github.com/SpecterOps/BloodHound/commit/8f790351349fd87bcb04377aba84cba6495825b3
Third Party Advisory third-party-advisory
https://www.vulncheck.com/advisories/bloodhound-missing-authorization-on-custom-node-management-api
Scores
CVSS v3
7.1
EPSS
0.0025
EPSS Percentile
15.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-862
Status
published
Products (2)
SpecterOps/BloodHound
< 9.4.0
SpecterOps/BloodHound
8f790351349fd87bcb04377aba84cba6495825b3
Published
Jul 15, 2026
Tracked Since
Jul 15, 2026