CVE-2026-18775: Server-Side Request Forgery in NousResearch hermes-agent
CVE-2026-18775 is a server-side request forgery (SSRF) vulnerability in the NousResearch hermes-agent up to version 0.16.0. It affects the browser_snapshot function in the tools/browser_tool.py component. The vulnerability can be exploited remotely and the exploit has been publicly disclosed. The vendor has not responded to the disclosure. The CVSS 4.0 base score is 5.3, indicating a medium severity.
AI Analysis
Technical Summary
This vulnerability in NousResearch hermes-agent (versions 0.1 through 0.16.0) allows an attacker to manipulate the browser_snapshot function in the Browser Tooling component, leading to server-side request forgery (SSRF). SSRF vulnerabilities enable attackers to make the server perform unauthorized requests, potentially accessing internal resources. The vulnerability can be exploited remotely without user interaction and requires low privileges. The vendor was notified but has not provided a response or patch. No official remediation or patch is currently documented.
Potential Impact
Successful exploitation of this SSRF vulnerability could allow an attacker to induce the affected server to send crafted requests to internal or external systems, potentially leading to information disclosure or interaction with internal services not otherwise accessible. The CVSS score of 5.3 reflects a medium impact with low attack complexity and no user interaction required. However, no known active exploitation in the wild has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded or released a fix, users should monitor official channels for updates. Until a patch is available, consider restricting network access from the hermes-agent to sensitive internal resources and applying network-level controls to limit SSRF impact.
CVE-2026-18775: Server-Side Request Forgery in NousResearch hermes-agent
Description
CVE-2026-18775 is a server-side request forgery (SSRF) vulnerability in the NousResearch hermes-agent up to version 0.16.0. It affects the browser_snapshot function in the tools/browser_tool.py component. The vulnerability can be exploited remotely and the exploit has been publicly disclosed. The vendor has not responded to the disclosure. The CVSS 4.0 base score is 5.3, indicating a medium severity.
CVSS v4.0
Score 5.3medium
Affected software
pkg:pypi/hermes-agentcpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in NousResearch hermes-agent (versions 0.1 through 0.16.0) allows an attacker to manipulate the browser_snapshot function in the Browser Tooling component, leading to server-side request forgery (SSRF). SSRF vulnerabilities enable attackers to make the server perform unauthorized requests, potentially accessing internal resources. The vulnerability can be exploited remotely without user interaction and requires low privileges. The vendor was notified but has not provided a response or patch. No official remediation or patch is currently documented.
Potential Impact
Successful exploitation of this SSRF vulnerability could allow an attacker to induce the affected server to send crafted requests to internal or external systems, potentially leading to information disclosure or interaction with internal services not otherwise accessible. The CVSS score of 5.3 reflects a medium impact with low attack complexity and no user interaction required. However, no known active exploitation in the wild has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded or released a fix, users should monitor official channels for updates. Until a patch is available, consider restricting network access from the hermes-agent to sensitive internal resources and applying network-level controls to limit SSRF impact.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-08-04T07:35:48.345Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a72133ebf8831d5391ad473
Added to database: 08/04/2026, 16:28:46 UTC
Last enriched: 08/04/2026, 16:45:48 UTC
Last updated: 08/04/2026, 17:29:58 UTC
Views: 5
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