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CVE-2026-9368— NousResearch hermes-agent Environment Variable code_execution_tool.py execute_code sandbox

CVSS 7.3 · High EPSS 0.38% · P31

Affected Version Matrix 17

VendorProductVersion RangeStatus
NousResearchhermes-agent2026.4.0affected
2026.4.1affected
2026.4.2affected
2026.4.3affected
2026.4.4affected
2026.4.5affected
2026.4.6affected
2026.4.7affected
… +9 more rows
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I. Basic Information for CVE-2026-9368

Vulnerability Information
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Vulnerability Title
NousResearch hermes-agent Environment Variable code_execution_tool.py execute_code sandbox
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was identified in NousResearch hermes-agent up to 2026.4.16. This impacts the function execute_code of the file tools/code_execution_tool.py of the component Environment Variable Handler. Such manipulation leads to sandbox issue. It is possible to launch the attack remotely. The exploit is publicly available and might be used. 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
权限/沙箱问题
Source: CVE Program / CVE List V5
Vulnerability Title
Hermes Agent 安全漏洞
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 2026.4.16及之前版本存在安全漏洞，该漏洞源于组件Environment Variable Handler中文件tools/code_execution_tool.py的函数execute_code操作不当，可能导致沙箱问题。
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

VendorProductAffected VersionsCPESubscribe
NousResearchhermes-agent 2026.4.0 cpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-9368

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III. Intelligence Information for CVE-2026-9368

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Proof of Concept for CVE-2026-9368 (1)

Same Patch Batch · NousResearch · 2026-05-24 · 9 CVEs total

CVE-2026-93507.3 HIGHNousResearch hermes-agent Batch Runner approval.py check_all_command_guards authorization
CVE-2026-93537.3 HIGHNousResearch hermes-agent Skills Guard Multi-Word Prompt skills_guard.py injection
CVE-2026-93667.3 HIGHNousResearch hermes-agent prompt_builder.py _scan_context_content injection
CVE-2026-93677.3 HIGHNousResearch hermes-agent terminal_tool approval.py detect_dangerous_command os command in
CVE-2026-93516.5 MEDIUMNousResearch hermes-agent read_file Tool file_tools.py _is_blocked_device path traversal
CVE-2026-93546.5 MEDIUMNousResearch hermes-agent Slack Agent/Mattermost Agent escape output
CVE-2026-93525.3 MEDIUMNousResearch hermes-agent Messaging Gateway local.py _make_run_env information disclosure
CVE-2026-93695.3 MEDIUMNousResearch hermes-agent CLI web-dashboard web_server.py _discover_dashboard_plugins comp

IV. Related Vulnerabilities

Same product: hermes-agent
Same vendor: NousResearch
Same weakness: CWE-265

V. Comments for CVE-2026-9368

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