Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| NousResearch | hermes-agent | 2026.4.23 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | hermes-agent | < 0.15.0 | 0.15.0 | GHSA-pgp4-xr4j-h5cg |
References
- VDB-365329 | NousResearch hermes-agent prompt_builder.py _scan_context_content injection vdb-entry technical-description
- VDB-365329 | CTI Indicators (IOB, IOC, TTP, IOA) signature permissions-required
- Submit #812227 | NousResearch hermes-agent 2026.4.23 Injection (CWE-74) third-party-advisory
- https://gist.github.com/YLChen-007/581fd92de5548fbaacb2092e848a75cc exploit