Authenticated graph-schema modification via missing permission checks
Published Jul 15, 2026 · Updated Jul 15, 2026
Missing authorization in SpecterOps BloodHound 9.4.0 and earlier allows remote authenticated users to alter the global graph schema. The custom-node route registrations require only a valid session and dispatch POST, PUT, and DELETE requests without checking the OpenGraph write permission. Any non-administrator account, including the Read-Only role, can create, update, or delete schema entries shared across the instance.
Summary
What happened
Missing authorization in SpecterOps BloodHound 9.4.0 and earlier allows remote authenticated users to alter the global graph schema. The custom-node route registrations require only a valid session and dispatch POST, PUT, and DELETE requests without checking the OpenGraph write permission. Any non-administrator account, including the Read-Only role, can create, update, or delete schema entries shared across the instance.
The record
- CVE
- CVE-2026-59255
- Published
- Jul 15, 2026
- Updated
- Jul 15, 2026
- Vendor
- SpecterOps
- Product
- BloodHound
- Classifications
- CWE-862, T1565.001
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 15, 2026CVE publishedPublication date reported by the CVE source.
- Jul 15, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=9.4.0
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Custom-node management API proof of conceptfunctional · demonstrated
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Technologies
Your stack
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Your stack
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