Medium 4.3Published Sep 1, 2026

CVE-2026-84287NousResearch hermes-agent Session Chat api_server.py denial of service

Updated under an hour ago (2026-10-19 07:23 UTC)

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Every CVE for NousResearch hermes-agent

Exploited in the last 30 days

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: 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
Weakness (CWE): CWE-404
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Sep 4, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

NousResearch hermes-agent nousresearch:hermes-agent	0.18.0	CNA record

References

https://vuldb.com/vuln/397718vdb-entry
https://vuldb.com/vuln/397718/ctisignature, permissions-required
https://vuldb.com/cve/CVE-2026-84287third-party-advisory
https://vuldb.com/submit/882712third-party-advisory
https://vuldb.com/submit/882795third-party-advisory
https://github.com/hackerguopeng/cve/tree/main/Hermes_API_Server_Session_Chat_DoS_Reportexploit

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.