CVE-2026-84287: medium-severity vulnerability in NousResearch hermes-agent
NousResearch hermes-agent Session Chat api_server.py denial of service
Published · Updated
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33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 5.3epss 0.5%
A flaw has been found in NousResearch hermes-agent 0.18.0. Affected by this issue is some unknown functionality of the file gateway/platforms/api_server.py of the component Session Chat Interface. This manipulation causes denial of service. The attack is possible to be carried out remotely. The exploit has been published 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:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
NousResearch · hermes-agentpublic PoCs found — 1
cve_referencegithub.com/hackerguopeng/cve/tree/main/Hermes_API_Server_Session_Chat_DoS_Reportunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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