CVE-2026-18774: Server-Side Request Forgery in NousResearch hermes-agent
CVE-2026-18774 is a server-side request forgery (SSRF) vulnerability in NousResearch hermes-agent up to version 0.16.0. The flaw exists in the save_url_image function of the xAI Image Generation Provider component, allowing remote attackers to manipulate server requests. Exploit code has been published, but no vendor response or patch is currently available. The vulnerability has a medium severity rating with a CVSS score of 5.3.
AI Analysis
Technical Summary
This vulnerability affects the save_url_image function in the agent/image_gen_provider.py file of the NousResearch hermes-agent product, versions 0.1 through 0.16.0. It allows an attacker to perform server-side request forgery, potentially causing the server to make unintended HTTP requests. The vulnerability can be exploited remotely without user interaction and requires low privileges. Although exploit code is publicly available, the vendor has not responded or provided a fix. No official remediation or patch has been published as of the disclosure date.
Potential Impact
The SSRF vulnerability allows remote attackers to induce the server to make arbitrary HTTP requests, which could lead to information disclosure or interaction with internal systems not otherwise accessible. The impact is rated medium with limited scope and complexity, as indicated by the CVSS vector. There is no evidence of active exploitation in the wild at this time.
Mitigation Recommendations
No official fix or patch is currently available from the vendor. Since the vendor did not respond to the disclosure, users should consider implementing network-level controls to restrict outbound requests from the affected component or isolate the hermes-agent service until a patch is released. Monitor official vendor channels for updates and apply any future patches promptly. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
CVE-2026-18774: Server-Side Request Forgery in NousResearch hermes-agent
Description
CVE-2026-18774 is a server-side request forgery (SSRF) vulnerability in NousResearch hermes-agent up to version 0.16.0. The flaw exists in the save_url_image function of the xAI Image Generation Provider component, allowing remote attackers to manipulate server requests. Exploit code has been published, but no vendor response or patch is currently available. The vulnerability has a medium severity rating with a CVSS score of 5.3.
CVSS v4.0
Score 5.3medium
Affected software
pkg:github/nousresearch/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 affects the save_url_image function in the agent/image_gen_provider.py file of the NousResearch hermes-agent product, versions 0.1 through 0.16.0. It allows an attacker to perform server-side request forgery, potentially causing the server to make unintended HTTP requests. The vulnerability can be exploited remotely without user interaction and requires low privileges. Although exploit code is publicly available, the vendor has not responded or provided a fix. No official remediation or patch has been published as of the disclosure date.
Potential Impact
The SSRF vulnerability allows remote attackers to induce the server to make arbitrary HTTP requests, which could lead to information disclosure or interaction with internal systems not otherwise accessible. The impact is rated medium with limited scope and complexity, as indicated by the CVSS vector. There is no evidence of active exploitation in the wild at this time.
Mitigation Recommendations
No official fix or patch is currently available from the vendor. Since the vendor did not respond to the disclosure, users should consider implementing network-level controls to restrict outbound requests from the affected component or isolate the hermes-agent service until a patch is released. Monitor official vendor channels for updates and apply any future patches promptly. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-08-04T07:35:41.048Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a72133ebf8831d5391ad46c
Added to database: 08/04/2026, 16:28:46 UTC
Last enriched: 08/04/2026, 16:46:12 UTC
Last updated: 08/04/2026, 21:02:55 UTC
Views: 7
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