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2.1

nexus-mcp allows remote code execution via URL

CVE-2026-94031 · published 29 days ago
Summary

The nexus-mcp authentication tool runs a system command based on a URL you provide. If an attacker controls that URL, they can make the server run arbitrary commands, potentially compromising your data. Apply the latest update from the project or stop using the tool until a fix is released.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
0-gaurav-0 nexus-mcp aed0026e7ac1f23dc940e46e9fd3a2da6904f914
Original advisory text
0-Gaurav-0 nexus-mcp nexus_reauth MCP tool browser.ts child_process.exec command injection
A vulnerability was detected in 0-Gaurav-0 nexus-mcp aed0026e7ac1f23dc940e46e9fd3a2da6904f914. Affected by this issue is the function child_process.exec of the file src/auth/browser.ts of the component nexus_reauth MCP tool. The manipulation of the argument url results in command injection. The attack may be performed from remote. The exploit is now public and may be used. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. The project was informed of the problem early through an issue report but has not responded yet.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
2.1 Low
Exploitation
1% chance of attack within 30 days
Type
CWE-74Injection
CWE-77Command Injection
Timeline
Published20 Sep 2026
Updated19 Oct 2026
First seen20 Sep 2026
Sources
CVE-2026-94031 · NVD
CVE-2026-94031 · MITRE
CVE-2026-94031 · OSV
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