hermes-agent has an Injection issue
A security flaw has been discovered in NousResearch hermes-agent up to 2026.4.30. Affected by this issue is the function _sanitize_env_lines of the file hermes_cli/config.py. The manipulation results in injection. It is possible to launch the attack remotely. The attack requires a high level of complexity. The exploitation is known to be difficult. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | hermes-agent | < 0.18.0 | 0.18.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-10222
- https://github.com/NousResearch/hermes-agent/commit/b944c6e821c2177eac6da857c99ff24566aa56b0
- https://gist.github.com/YLChen-007/7ee2eeaa383b3540d2e8854250c03fb0
- https://github.com/NousResearch/hermes-agent
- https://vuldb.com/cve/CVE-2026-10222
- https://vuldb.com/submit/822020
- https://vuldb.com/vuln/367501
- https://vuldb.com/vuln/367501/cti
- https://pypi.org/project/hermes-agent
- https://github.com/advisories/GHSA-mv8x-fg99-32mf
- https://github.com/pypa/advisory-database/tree/main/vulns/hermes-agent/PYSEC-2026-2513.yaml
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L- Weakness (CWE)
CWE-74- Platform
- Python (PyPI)
- Package
hermes-agent- Disclosed
- 01.06.2026
- Updated
- 11.10.2026 14:18
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-2513 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-mv8x-fg99-32mf - CC BY 4.0
Vulnerability history: hermes-agent
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 10
- First → latest
- 05.2026 06.2026
- Without a fix
- 2
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 6
- Low 3
Disclosures per year
- 2026: 10
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hermes-agent has an Injection issue this entry
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