hermes-agent has an Injection issue
Date: 2026-05
Affected: pip/hermes-agent
Attack vector: other
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2026-9366
CWE: CWE-74
CVSS: 7.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

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.


Mitigations:

Architectural layers (MAESTRO):