Vulnerability in Nousresearch Hermes-Agent
CVE-2026-14626
A weakness has been identified in NousResearch hermes-agent up to 2026.4.30. The impacted element is the function AIAgent.run_conversation of the file run_agent.py of the component HTTP API. This manipulation of the argument todos causes denial of service. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (38.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Nousresearch Hermes-Agent — versions 2026.4.0, 2026.4.1, 2026.4.2
Weakness classification (CWE)
References
- gist.github.com/YLChen-007/b91a85f9448beadebe25d37a3f4fd760 (exploit)
- vuldb.com/cve/CVE-2026-14626 (third-party-advisory)
- vuldb.com/submit/845596 (third-party-advisory)
- vuldb.com/vuln/376142 (technical-description, vdb-entry)
- vuldb.com/vuln/376142/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-14626?
- CVE-2026-14626 is a medium-severity vulnerability in Nousresearch Hermes-Agent, classified under Improper Resource Shutdown or Release. CVSS score: 4.3/10. Published 2026-07-04.
- How severe is CVE-2026-14626?
- Medium severity. CVSS v3 base score is 4.3 out of 10.