CVE-2026-9353mediumCWE-707CWE-74

CVE-2026-9353: medium-severity vulnerability in NousResearch hermes-agent

NousResearch hermes-agent Skills Guard Multi-Word Prompt skills_guard.py 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 security vulnerability has been detected in NousResearch hermes-agent up to 2026.4.23. Impacted is an unknown function of the file agent/skills_guard.py of the component Skills Guard Multi-Word Prompt Handler. The manipulation of the argument THREAT_PATTERNS leads to injection. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may 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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