What is CVE-2026-84287?

CVE-2026-84287 is a medium-severity vulnerability in Nousresearch Hermes-Agent, classified under Improper Resource Shutdown or Release. CVSS score: 4.3/10. Published 2026-09-01.

How severe is CVE-2026-84287?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Nousresearch Hermes-Agent

CVE-2026-84287

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 v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

Nousresearch Hermes-agent — versions 0.18.0

Weakness classification (CWE)

CWE-404 — Improper Resource Shutdown or Release

References

cna@vuldb.com (exploit)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (vdb-entry)
cna@vuldb.com (signature, permissions-required)

Frequently asked questions

What is CVE-2026-84287?: CVE-2026-84287 is a medium-severity vulnerability in Nousresearch Hermes-Agent, classified under Improper Resource Shutdown or Release. CVSS score: 4.3/10. Published 2026-09-01.
How severe is CVE-2026-84287?: Medium severity. CVSS v3 base score is 4.3 out of 10.