CVE-2026-9352 NousResearch hermes-agent Messaging Gateway local.py _make_run_env information disclosure
Remote attackers can exploit a flaw in the hermes-agent library to disclose sensitive information via the messaging gateway.
- 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-2026-9352?
CVE-2026-9352 is a medium-severity vulnerability in NousResearch hermes-agent, published on 24 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A weakness has been identified in NousResearch hermes-agent up to 2026.4.23. This issue affects the function _make_run_env of the file tools/environments/local.py of the component Messaging Gateway Handler. Executing a manipulation can lead to information disclosure. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-9352?
How do I fix CVE-2026-9352?
No fix has been published for CVE-2026-9352 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-9352 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9352 exists.
Sources
Also known as GHSA-8r48-r96c-p95w.