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CVE-2026-18773— NousResearch hermes-agent Quick run.py _check_slash_access authorization

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 2026.6.5及之前版本存在授权问题漏洞，该漏洞源于对gateway/run.py文件中_check_slash_access函数的操作不当，导致不正确的授权，攻击者可能远程利用。

CVSS 6.3 · Medium EPSS 0.35% · P27

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 6

VendorProduct Version RangeStatus
NousResearch hermes-agent 2026.6.0 affected
2026.6.1 affected
2026.6.2 affected
2026.6.3 affected
2026.6.4 affected
2026.6.5 affected
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I. Basic Information for CVE-2026-18773

Vulnerability Information
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Vulnerability Title
NousResearch hermes-agent Quick run.py _check_slash_access authorization
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in NousResearch hermes-agent up to 2026.6.5. Affected by this issue is the function _check_slash_access of the file gateway/run.py of the component Quick Command Handler. The manipulation results in incorrect authorization. The attack can be launched remotely. The exploit is now public and may 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:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Nous Research Hermes Agent 授权问题漏洞
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 2026.6.5及之前版本存在授权问题漏洞，该漏洞源于对gateway/run.py文件中_check_slash_access函数的操作不当，导致不正确的授权，攻击者可能远程利用。
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 2026.6.0 cpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-18773

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III. Intelligence Information for CVE-2026-18773

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Proof of Concept for CVE-2026-18773 (1)

Same Patch Batch · NousResearch · 2026-08-04 · 3 CVEs total

CVE-2026-18775 6.3 MEDIUM NousResearch hermes-agent Browser Tooling browser_tool.py browser_snapshot server-side req
CVE-2026-18774 6.3 MEDIUM NousResearch hermes-agent xAI Image Generation Provider image_gen_provider.py save_url_ima

IV. Related Vulnerabilities

Same product: hermes-agent
Same vendor: NousResearch
Same weakness: CWE-863

V. Comments for CVE-2026-18773

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