CVE-2026-14626
NousResearch hermes-agent HTTP API run_agent.py AIAgent.run_conversation denial of service
- State
- Published
- Severity
- 5.3 Medium
- Published
- Jul 4, 2026
- Updated
- Jul 7, 2026
- Reserved
- Jul 3, 2026
Description
A weakness has been identified in NousResearch hermes-agent up to 2026.4.30. The impacted element is the function AIAgent.run_conversation of the file run_agent.py of the component HTTP API. This manipulation of the argument todos causes denial of service. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 4.3 Medium | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 4.0 Medium | AV:N/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
- CWE-404 Denial of Service
Affected Products
| Product | Versions |
|---|---|
hermes-agentNousResearch |
|
References
- VDB-376142 | NousResearch hermes-agent HTTP API run_agent.py AIAgent.run_conversation denial of servicevdb-entrytechnical-description
- VDB-376142 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- CVE-2026-14626 | CVE Analysis and Reportthird-party-advisory
- Submit #845596 | NousResearch Hermes Agent <= v2026.4.30 Insufficient Verification of Data Authenticity (CWE-345)third-party-advisory
- https://gist.github.com/YLChen-007/b91a85f9448beadebe25d37a3f4fd760exploit
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