CVE-2026-7397 NousResearch hermes-agent file_tools.py _check_sensitive_path symlink
Local attackers can bypass path restrictions via symlink following in file tools, potentially accessing or modifying sensitive files.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-7397?
CVE-2026-7397 is a medium-severity path traversal vulnerability in NousResearch hermes-agent, published on 29 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A security flaw has been discovered in NousResearch hermes-agent 0.8.0. This affects the function _check_sensitive_path of the file tools/file_tools.py. The manipulation results in symlink following. Attacking locally is a requirement. The exploit has been released to the public and may be used for attacks. Upgrading to version 0.9.0 is able to mitigate this issue. The patch is identified as 311dac197145e19e07df68feba2cd55d896a3cd1. Upgrading the affected component is recommended.
Which versions are affected by CVE-2026-7397?
How do I fix CVE-2026-7397?
No fix has been published for CVE-2026-7397 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-7397 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7397 exists.
Sources
Also known as GHSA-g8j6-2v57-f5wp.