CVE-2026-85105 NousResearch hermes-agent Session Management s71.py _sess_nowait authorization
Remote attackers can bypass authorization in NousResearch hermes-agent by manipulating the session_id argument in the session management module.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-85105?
CVE-2026-85105 is a medium-severity authentication bypass vulnerability in NousResearch hermes-agent, published on 3 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A flaw has been found in NousResearch hermes-agent 0.18.0. Affected by this issue is the function _sess_nowait of the file s71.py of the component Session Management. This manipulation of the argument session_id causes authorization bypass. The attack can be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-85105?
How do I fix CVE-2026-85105?
No fix has been published for CVE-2026-85105 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-85105 being exploited?
There is no known exploitation of CVE-2026-85105 in the wild and no public exploit code.
Sources
Also known as GHSA-47g2-35xp-x46h.