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CVE-2026-18993— NousResearch hermes-agent Memory Toolset model_tools.py access control

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hermes-agent/model_tools.py文件中Memory Toolset组件存在访问控制不当问题，攻击者可远程执行攻击，且漏洞利用已公开。

CVSS 6.3 · Medium EPSS 0.21% · P12

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

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-2026-18993

Vulnerability Information
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Vulnerability Title
NousResearch hermes-agent Memory Toolset model_tools.py access control
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in NousResearch hermes-agent up to 0.16.0. Affected by this issue is some unknown functionality of the file hermes-agent/model_tools.py of the component Memory Toolset. The manipulation results in improper access controls. The attack can be executed remotely. The exploit is now public and may be used.
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
访问控制不恰当
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hermes-agent/model_tools.py文件中Memory Toolset组件存在访问控制不当问题，攻击者可远程执行攻击，且漏洞利用已公开。
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-2026-18993

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III. Intelligence Information for CVE-2026-18993

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Patches & Fixes for CVE-2026-18993 (1)

Proof of Concept for CVE-2026-18993 (2)

Other References for CVE-2026-18993 (4)

IV. Related Vulnerabilities

Same product: hermes-agent
Same vendor: NousResearch
Same weakness: CWE-284

V. Comments for CVE-2026-18993

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