# CVE-2026-85106: NousResearch hermes-agent server-side request forgery in Link Title Fetch

Source: https://junglewise.ai/threats/cve-2026-85106-nousresearch-hermes-agent-server-side-request-forgery-in-link  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-03. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-85106 · Severity: medium · CVSS 6.3 · Published 2026-09-03

NousResearch hermes-agent is a desktop application that fetches and displays web page titles. A vulnerability in the link title fetching function allows an attacker to manipulate the URL parameter, potentially causing the application to make unintended server requests to arbitrary internal or external systems. This could enable an attacker to access sensitive internal services, bypass network restrictions, or launch attacks against other systems on the network.

Technologies: [NousResearch Hermes Agent](https://junglewise.ai/threats/technologies/hermes-agent). Vendors: [NousResearch](https://junglewise.ai/threats/vendors/nousresearch).

## Quick answers

**Is CVE-2026-85106 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-85106 being exploited in the wild.

**How severe is CVE-2026-85106?** Medium severity, with a CVSS score of 6.3, published 3 September 2026.

**Which products and versions are affected?** NousResearch Hermes Agent 0.18.0.

**Is there a fix for CVE-2026-85106?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-85106 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-85106?** Check whether you run NousResearch Hermes Agent at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is a server-side request forgery (SSRF) flaw in the fetchLinkTitle function within apps/desktop/src/app/artifacts/index.tsx. The vulnerable component fails to properly validate or sanitize the url argument before using it to fetch link titles, allowing an attacker to inject arbitrary URLs. The attack is remotely exploitable without authentication required. An attacker can craft a malicious URL to cause the application to make HTTP requests to unintended destinations, potentially accessing internal services, metadata endpoints, or launching further attacks. The vendor was contacted but has not responded with a fix as of the advisory date.

## Affected products

- NousResearch hermes-agent 0.18.0

## Timeline

- 2026-09-03: disclosed: Public disclosure via NVD
- 2026-09-03: other: Vendor contacted early but did not respond

## References

- [https://vuldb.com/cve/CVE-2026-85106](https://vuldb.com/cve/CVE-2026-85106)
- [https://vuldb.com/submit/885132](https://vuldb.com/submit/885132)

## Related threats

- [NousResearch hermes-agent resource exhaustion in resourceBufferFromUrl](https://junglewise.ai/threats/cve-2026-85107-nousresearch-hermes-agent-resource-exhaustion-in)
- [NousResearch hermes-agent authorization bypass in Session Management](https://junglewise.ai/threats/cve-2026-85105-nousresearch-hermes-agent-authorization-bypass-in-session)
- [NousResearch hermes-agent denial of service in MCP Tool](https://junglewise.ai/threats/cve-2026-84289-nousresearch-hermes-agent-denial-of-service-in-mcp-tool)
- [NousResearch hermes-agent denial of service in ACP Prompt Workflow](https://junglewise.ai/threats/cve-2026-84288-nousresearch-hermes-agent-denial-of-service-in-acp-prompt)
- [NousResearch hermes-agent denial of service in session chat](https://junglewise.ai/threats/cve-2026-84287-nousresearch-hermes-agent-denial-of-service-in-session-chat)