SpecterOps BloodHound up to 9.5.1 Graph Write Endpoint v2.go NewV2API improper authorization

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k1.51+

Summaryinfo

A vulnerability has been found in SpecterOps BloodHound up to 9.5.1 and classified as critical. The impacted element is the function NewV2API of the file cmd/api/src/api/registration/v2.go of the component Graph Write Endpoint. The manipulation leads to improper authorization. This vulnerability is documented as CVE-2026-85241. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in SpecterOps BloodHound up to 9.5.1 and classified as critical. This issue affects the function NewV2API of the file cmd/api/src/api/registration/v2.go of the component Graph Write Endpoint. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability.

The identification of this vulnerability is CVE-2026-85241. The exploitation is known to be easy. The attack may be initiated remotely. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

Upgrading to version 9.6.0-rc1, 9.6.0 or 9.7.0-rc3 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 39d1276a63e95a7713f954dea632a19651d9cebb is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authorization
CWE: CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: BloodHound 9.6.0-rc1/9.6.0/9.7.0-rc3
Patch: 39d1276a63e95a7713f954dea632a19651d9cebb

Timelineinfo

09/03/2026 Advisory disclosed
09/03/2026 +0 days VulDB entry created
09/03/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Status: Confirmed

CVE: CVE-2026-85241 (🔒)
GCVE (CVE): GCVE-0-2026-85241
GCVE (VulDB): GCVE-100-398471

Entryinfo

Created: 09/03/2026 17:52
Changes: 09/03/2026 17:52 (57)
Complete: 🔍
Submitter: b1d0ws
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #894488: SpecterOps BloodHound 9.4.0 Improper Authorization (by b1d0ws)

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