OS Command Injection in NousResearch Hermes-Agent Terminal Tool
CVE-2026-9367

6.9MEDIUM

Key Information:

Vendor

Nousresearch

Status
Hermes-agent
Vendor
CVE Published:
24 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-9367?

A security vulnerability has been identified within the NousResearch hermes-agent that allows for OS command injection through the 'detect_dangerous_command' function located in the 'approval.py' file of the terminal_tool component. This vulnerability permits an attacker to execute arbitrary commands on the affected system remotely. Although the issue has been publicly disclosed, the vendor has yet to respond to the notification regarding this security concern.

Affected Version(s)

hermes-agent 5157f5427f19488b31c6fdebbacd15d798ce7f63

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-9367 - Proof of Concept

References

https://vuldb.com/vuln/365330
vdb-entrytechnical-description
https://vuldb.com/vuln/365330/cti
signaturepermissions-required
https://vuldb.com/submit/812228
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Eric-i (VulDB User)
VulDB CNA Team
.