Vulnerability · Published Sep 3, 2026 · Assigned by VulDB
CVE-2026-85241SpecterOps BloodHound Graph Write Endpoint v2.go NewV2API improper authorization
Medium 6.3
In plain English
A medium-severity security flaw in BloodHound from SpecterOps. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| SpecterOps | BloodHound | 9.0.09.1.09.2.29.4.09.5.09.5.1 |
Weakness: CWE-285, CWE-266 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
References
- VDB-398471 | SpecterOps BloodHound Graph Write Endpoint v2.go NewV2API improper authorization vdb-entry, technical-description
- VDB-398471 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- CVE-2026-85241 | CVE Analysis and Report third-party-advisory
- Submit #894488 | SpecterOps BloodHound 9.4.0 Improper Authorization third-party-advisory
- https://github.com/SpecterOps/BloodHound/commit/39d1276a63e95a7713f954dea632a19651d9cebb patch
- https://github.com/SpecterOps/BloodHound/releases/tag/v9.6.0-rc1 patch
- https://github.com/SpecterOps/BloodHound/ product