CVE-2026-9366mediumCWE-707CWE-74

CVE-2026-9366: medium-severity vulnerability in NousResearch hermes-agent

NousResearch hermes-agent prompt_builder.py _scan_context_content injection

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33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 6.9epss 0.3%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
NousResearch · hermes-agent
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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