HIGH7.3
PYSEC-2026-2515
hermes-agent has a sandbox issue
Quick fix
PYSEC-2026-2515 — hermes-agent: upgrade to the fixed version with the command below.
pip install --upgrade 'hermes-agent>=0.11.0'Details
A vulnerability was identified in NousResearch hermes-agent up to 2026.4.16. This impacts the function execute_code of the file tools/code_execution_tool.py of the component Environment Variable Handler. Such manipulation leads to sandbox issue. It is possible to launch the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Are you affected?
Enter the version of the package you're using.
Affected packages
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-9368[ADVISORY]
- https://github.com/NousResearch/hermes-agent/commit/285bb2b9150b93445e5eded9bc897a4001b66e55[WEB]
- https://gist.github.com/YLChen-007/43c72d19668421abe8ce10f299323a0a[WEB]
- https://github.com/NousResearch/hermes-agent[PACKAGE]
- https://vuldb.com/submit/812229[WEB]
- https://vuldb.com/vuln/365331[WEB]
- https://vuldb.com/vuln/365331/cti[WEB]
- https://pypi.org/project/hermes-agent[PACKAGE]
- https://github.com/advisories/GHSA-wm96-9gfh-vvgq[ADVISORY]