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CVE-2026-18775— NousResearch hermes-agent Browser Tooling browser_tool.py browser_snapshot server-side request forgery

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及之前版本存在服务端请求伪造漏洞，该漏洞源于tools/browser_tool.py文件的browser_snapshot函数存在服务端请求伪造问题，可能导致远程攻击者发起服务端请求伪造攻击。

CVSS 6.3 · Medium EPSS 0.38% · P30

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-2026-18775

Vulnerability Information
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Vulnerability Title
NousResearch hermes-agent Browser Tooling browser_tool.py browser_snapshot server-side request forgery
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in NousResearch hermes-agent up to 0.16.0. This vulnerability affects the function browser_snapshot of the file tools/browser_tool.py of the component Browser Tooling. Such manipulation leads to server-side request forgery. The attack may be launched remotely. The exploit has been disclosed to the 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
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Nous Research Hermes Agent 服务端请求伪造漏洞
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及之前版本存在服务端请求伪造漏洞，该漏洞源于tools/browser_tool.py文件的browser_snapshot函数存在服务端请求伪造问题，可能导致远程攻击者发起服务端请求伪造攻击。
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-2026-18775

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III. Intelligence Information for CVE-2026-18775

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Proof of Concept for CVE-2026-18775 (1)

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

CVE-2026-18773 6.3 MEDIUM NousResearch hermes-agent Quick run.py _check_slash_access authorization
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-918

V. Comments for CVE-2026-18775

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