Command Injection Vulnerability in 0-Gaurav-0 Nexus-MCP Tool
CVE-2026-94031

5.3MEDIUM

Key Information:

Vendor

0-gaurav-0

Status
Nexus-mcp
Vendor
CVE Published:
20 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-94031?

A command injection vulnerability exists in the child_process.exec function of the src/auth/browser.ts file in the nexus_reauth component of the 0-Gaurav-0 nexus-mcp tool. This flaw allows an attacker to manipulate the argument URL to execute arbitrary commands remotely. Given that the product employs a rolling release system, specific version details regarding affected or patched releases are not made available. While the project was notified of the issue through an official report, it has yet to respond or provide a remedy.

Affected Version(s)

nexus-mcp aed0026e7ac1f23dc940e46e9fd3a2da6904f914

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-2026-94031 - Proof of Concept

References

https://vuldb.com/vuln/407959
vdb-entrytechnical-description
https://vuldb.com/vuln/407959/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-94031
third-party-advisory

CVSS V4

Score:
5.3
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

Xh1Xxhg (VulDB User)
VulDB CNA Team
.