CVE-2026-9367— NousResearch hermes-agent terminal_tool approval.py detect_dangerous_command os command injection
Quick assessment
Affected
NousResearch hermes-agent
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Hermes Agent是Nous Research开源的一款具备自我学习循环的AI代理工具。 Hermes Agent 5157f5427f19488b31c6fdebbacd15d798ce7f63及之前版本存在操作系统命令注入漏洞，该漏洞源于组件terminal_tool中文件tools/approval.py的函数detect_dangerous_command操作不当，可能导致OS命令注入。
Affected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| NousResearch | hermes-agent | 5157f5427f19488b31c6fdebbacd15d798ce7f63 |
affected |
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I. Basic Information for CVE-2026-9367
Vulnerability Information
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Vulnerability Title
NousResearch hermes-agent terminal_tool approval.py detect_dangerous_command os command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was determined in NousResearch hermes-agent up to 5157f5427f19488b31c6fdebbacd15d798ce7f63. This affects the function detect_dangerous_command of the file tools/approval.py of the component terminal_tool. This manipulation causes os command injection. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Hermes Agent 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hermes Agent是Nous Research开源的一款具备自我学习循环的AI代理工具。 Hermes Agent 5157f5427f19488b31c6fdebbacd15d798ce7f63及之前版本存在操作系统命令注入漏洞，该漏洞源于组件terminal_tool中文件tools/approval.py的函数detect_dangerous_command操作不当，可能导致OS命令注入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| NousResearch | hermes-agent | 5157f5427f19488b31c6fdebbacd15d798ce7f63 |
cpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:*
|
|
II. Public POCs for CVE-2026-9367
| # | POC Description | Source Link | Shenlong Link |
|---|
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Proof of Concept for CVE-2026-9367 (1)
Same Patch Batch · NousResearch · 2026-05-24 · 9 CVEs total
| CVE-2026-9350 | 7.3 HIGH | NousResearch hermes-agent Batch Runner approval.py check_all_command_guards authorization |
| CVE-2026-9353 | 7.3 HIGH | NousResearch hermes-agent Skills Guard Multi-Word Prompt skills_guard.py injection |
| CVE-2026-9366 | 7.3 HIGH | NousResearch hermes-agent prompt_builder.py _scan_context_content injection |
| CVE-2026-9368 | 7.3 HIGH | NousResearch hermes-agent Environment Variable code_execution_tool.py execute_code sandbox |
| CVE-2026-9351 | 6.5 MEDIUM | NousResearch hermes-agent read_file Tool file_tools.py _is_blocked_device path traversal |
| CVE-2026-9354 | 6.5 MEDIUM | NousResearch hermes-agent Slack Agent/Mattermost Agent escape output |
| CVE-2026-9352 | 5.3 MEDIUM | NousResearch hermes-agent Messaging Gateway local.py _make_run_env information disclosure |
| CVE-2026-9369 | 5.3 MEDIUM | NousResearch hermes-agent CLI web-dashboard web_server.py _discover_dashboard_plugins comp |
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V. Comments for CVE-2026-9367
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