Vulnerability in Nousresearch Hermes-Agent
CVE-2026-7397
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.002 (5.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 5.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000
Affected products
- Nousresearch Hermes-Agent — versions 0.8.0, 0.9.0
Weakness classification (CWE)
References
- vuldb.com/vuln/360121 (technical-description, vdb-entry)
- vuldb.com/vuln/360121/cti (signature, permissions-required)
- vuldb.com/submit/803270 (third-party-advisory)
- github.com/NousResearch/hermes-agent/issues/8734 (issue-tracking, exploit)
- github.com/NousResearch/hermes-agent/pull/8829 (issue-tracking, patch)
- github.com/NousResearch/hermes-agent/commit/311dac197145e19e07df68feba2cd55d896… (patch)
- github.com/NousResearch/hermes-agent/releases/tag/v2026.4.13 (patch)
- github.com/NousResearch/hermes-agent/ (product)
Frequently asked questions
- What is CVE-2026-7397?
- CVE-2026-7397 is a medium-severity vulnerability in Nousresearch Hermes-Agent, classified under Improper Link Resolution Before File Access. CVSS score: 4.4/10. Published 2026-04-29.
- How severe is CVE-2026-7397?
- Medium severity. CVSS v3 base score is 4.4 out of 10.