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CVE-2026-18976— NousResearch hermes-agent disabled_toolsets agent_init.py get_tool_definitions privileges assignment

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.

Nous Research Hermes Agent是Nous Research团队开源的一款具备自我学习循环的AI代理工具。 Nous Research Hermes Agent 0.16.0及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于agent/agent_init.py文件中get_tool_definitions函数的disabled_toolsets Handler组件存在权限分配错误，可能导致远程攻击。

CVSS 6.3 · Medium EPSS 0.37% · P28

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 16

VendorProduct Version RangeStatus
NousResearch hermes-agent 0.1 affected
0.2 affected
0.3 affected
0.4 affected
0.5 affected
0.6 affected
0.7 affected
0.8 affected
… +8 more rows
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I. Basic Information for CVE-2026-18976

Vulnerability Information
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Vulnerability Title
NousResearch hermes-agent disabled_toolsets agent_init.py get_tool_definitions privileges assignment
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
特权授予不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Nous Research Hermes Agent 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nous Research Hermes Agent是Nous Research团队开源的一款具备自我学习循环的AI代理工具。 Nous Research Hermes Agent 0.16.0及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于agent/agent_init.py文件中get_tool_definitions函数的disabled_toolsets Handler组件存在权限分配错误，可能导致远程攻击。
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 0.1 cpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-18976

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III. Intelligence Information for CVE-2026-18976

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Patches & Fixes for CVE-2026-18976 (1)

Vendor Advisories for CVE-2026-18976 (1)

Proof of Concept for CVE-2026-18976 (1)

Other References for CVE-2026-18976 (3)

IV. Related Vulnerabilities

Same product: hermes-agent
Same vendor: NousResearch
Same weakness: CWE-266

V. Comments for CVE-2026-18976

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