# CVE-2026-11461: NousResearch hermes-agent authorization bypass in resolve_session_by_title

Source: https://junglewise.ai/threats/cve-2026-11461-nousresearch-hermes-agent-authorization-bypass-in-resolve-session  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-07. Updated: 2026-06-07  
License: CC BY 4.0 with a link back

CVE-2026-11461 · Severity: medium · CVSS 6.3 · Published 2026-06-07

A security flaw in the NousResearch Hermes Agent allows unauthorized users to access and take over other people's chat sessions. By simply guessing or knowing the title of a conversation, an attacker can gain full access to the chat history, including any private information or API keys shared with the AI agent. This affects multi-user deployments like Discord or Telegram bots where multiple people share the same backend system.

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

## Quick answers

**Is CVE-2026-11461 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-11461 being exploited in the wild.

**How severe is CVE-2026-11461?** Medium severity, with a CVSS score of 6.3, published 7 June 2026.

**Which products and versions are affected?** NousResearch Hermes Agent <= 0.12.0.

**Is there a fix for CVE-2026-11461?** 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-2026-11461 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-11461?** 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 exists in the `resolve_session_by_title` and `get_session_by_title` functions within `hermes_state.py`. These functions perform global SQL queries against the session database without filtering by `user_id` or `source` platform. An attacker can invoke the `/resume` command with a target session's title to redirect their active session pointer to a victim's session. This grants the attacker full read/write access to the victim's conversation history and the ability to execute commands in the victim's context. The issue is present in versions up to 0.12.0 (specifically tag v2026.4.30) and currently has no official patch.

## Affected products

- NousResearch hermes-agent <= 0.12.0

## Timeline

- 2026-05-07: disclosed: Vulnerability discovered and PoC created by researcher YLChen-007
- 2026-06-07: advisory: CVE-2026-11461 published via VulDB/NVD

## References

- [https://gist.github.com/YLChen-007/7951b3dc39193fb675914cc5d8b672fa](https://gist.github.com/YLChen-007/7951b3dc39193fb675914cc5d8b672fa)
- [https://gist.github.com/YLChen-007/c2d162e9c8d39584223683cdcba98607](https://gist.github.com/YLChen-007/c2d162e9c8d39584223683cdcba98607)
- [https://vuldb.com/cve/CVE-2026-11461](https://vuldb.com/cve/CVE-2026-11461)
- [https://vuldb.com/submit/829402](https://vuldb.com/submit/829402)
- [https://vuldb.com/vuln/369081](https://vuldb.com/vuln/369081)
- [https://vuldb.com/vuln/369081/cti](https://vuldb.com/vuln/369081/cti)

## 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 server-side request forgery in Link Title Fetch](https://junglewise.ai/threats/cve-2026-85106-nousresearch-hermes-agent-server-side-request-forgery-in-link)
- [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)