CVE-2026-14626

MEDIUM 4.3

NousResearch hermes-agent HTTP API run_agent.py AIAgent.run_conversation denial of service

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-404
Vendor	nousresearch
Product	hermes-agent
Published	Jul 4, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

NousResearch / hermes-agent

2026.4.0 2026.4.1 2026.4.2 2026.4.3 2026.4.4 2026.4.5 2026.4.6 2026.4.7 2026.4.8 2026.4.9 2026.4.10 2026.4.11 2026.4.12 2026.4.13 2026.4.14 2026.4.15 2026.4.16 2026.4.17 2026.4.18 2026.4.19 2026.4.20 2026.4.21 2026.4.22 2026.4.23 2026.4.24 2026.4.25 2026.4.26 2026.4.27 2026.4.28 2026.4.29 2026.4.30

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/376142 vuldb.com: https://vuldb.com/vuln/376142/cti vuldb.com: https://vuldb.com/cve/CVE-2026-14626 vuldb.com: https://vuldb.com/submit/845596 gist.github.com: https://gist.github.com/YLChen-007/b91a85f9448beadebe25d37a3f4fd760

Credits

🔍 Eric-a (VulDB User) VulDB CNA Team