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