Access Control Vulnerability in NousResearch hermes-agent SimpleX Gateway Authorization
CVE-2026-17432

2.3LOW

Key Information:

Vendor

Nousresearch

Status
Hermes-agent
Vendor
CVE Published:
26 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-17432?

A security issue has been identified in NousResearch's hermes-agent, specifically within the SimpleX Gateway Authorization component. The vulnerability arises from the improper handling of the contactId argument in the file hermes-agent/plugins/platforms/simplex/adapter.py. This flaw may allow unauthorized access, enabling remote attacks. Although exploitation is challenging due to its high complexity, the public disclosure of the exploit necessitates immediate attention. It is strongly recommended to apply the patch identified as 490c486ff65b766d9de0fe0e6f26e1778aaa8fb3 to mitigate this risk.

Affected Version(s)

hermes-agent 2026.6.5

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-2026-17432 - Proof of Concept

References

https://vuldb.com/vuln/383065
vdb-entrytechnical-description
https://vuldb.com/vuln/383065/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-17432
third-party-advisory

CVSS V4

Score:
2.3
Severity:
LOW
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Erichen-x (VulDB User)
.