CVE-2026-18976
NousResearch hermes-agent disabled_toolsets agent_init.py get_tool_definitions privileges assignment
- State
- Published
- Severity
- 5.3 Medium
- Published
- Aug 6, 2026
- Updated
- Aug 6, 2026
- Reserved
- Aug 5, 2026
Description
A vulnerability was determined in NousResearch hermes-agent up to 0.16.0. This impacts the function get_tool_definitions of the file agent/agent_init.py of the component disabled_toolsets Handler. This manipulation causes incorrect privilege assignment. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 6.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 6.3 Medium | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 6.5 Medium | AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:C | VulDB |
Weaknesses
- CWE-266 Incorrect Privilege Assignment
Affected Products
| Product | Versions |
|---|---|
hermes-agentNousResearch |
|
References
- VDB-386264 | NousResearch hermes-agent disabled_toolsets agent_init.py get_tool_definitions privileges assignmentvdb-entrytechnical-description
- VDB-386264 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- CVE-2026-18976 | CVE Analysis and Reportthird-party-advisory
- Submit #862541 | NousResearch Hermes Agent 0.16.0 Incorrect Privilege Assignment (CWE-266)third-party-advisory
- https://github.com/NousResearch/hermes-agent/issues/46171exploitissue-tracking
- https://github.com/NousResearch/hermes-agent/pull/46185issue-trackingpatch
- https://github.com/NousResearch/hermes-agent/product
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