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CVE-2026-6108: 1Panel-dev MaxKB: Remote Code Execution in MCP Node

CVE-2026-6108 · published 6 months ago

Summary

An attacker can execute arbitrary system commands on a vulnerable system using the 1Panel-dev MaxKB MCP Node, which can lead to unauthorized access and data theft. This vulnerability allows an attacker to take control of the system remotely, so it's essential to update to the latest fixed version as soon as possible. The vendor has already released a patched version, so you should upgrade to the latest version to ensure your system is secure.

Original advisory text

A vulnerability was found in 1Panel-dev MaxKB up to 2.6.1. The affected element is the function execute of the file apps/application/flow/step_node/mcp_node/impl/base_mcp_node.py of the component Model Context Protocol Node. Performing a manipulation results in os command injection. The attack is possible to be carried out remotely. The exploit has been made public and could be used. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

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-77Command Injection

CWE-78OS Command Injection

Timeline

Published12 Apr 2026

Updated4 Nov 2026

First seen12 Apr 2026

Sources

CVE-2026-6108 · NVD

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