HIGH7.3
PYSEC-2026-2514
hermes-agent has an Injection issue
Quick fix
PYSEC-2026-2514 — hermes-agent: upgrade to the fixed version with the command below.
pip install --upgrade 'hermes-agent>=0.15.0'Details
A vulnerability was found in NousResearch hermes-agent 2026.4.23. The impacted element is the function _scan_context_content of the file agent/prompt_builder.py. The manipulation results in injection. The attack may be performed from remote. The exploit has been made public and could 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-2026-9366[ADVISORY]
- https://github.com/NousResearch/hermes-agent/commit/0dee92df22bdc0cfbcad90ca954aa14916f018de[WEB]
- https://gist.github.com/YLChen-007/581fd92de5548fbaacb2092e848a75cc[WEB]
- https://github.com/NousResearch/hermes-agent[PACKAGE]
- https://vuldb.com/submit/812227[WEB]
- https://vuldb.com/vuln/365329[WEB]
- https://vuldb.com/vuln/365329/cti[WEB]
- https://pypi.org/project/hermes-agent[PACKAGE]
- https://github.com/advisories/GHSA-pgp4-xr4j-h5cg[ADVISORY]