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CVE-2026-6108— 1Panel-dev MaxKB Model Context Protocol Node base_mcp_node.py execute os command injection

Quick assessment

Affected
1Panel-dev MaxKB
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MaxKB是1Panel-dev开源的一款基于大语言模型和 RAG 的开源知识库问答系统。 MaxKB 2.6.1及之前版本存在操作系统命令注入漏洞，该漏洞源于Model Context Protocol Node组件中文件apps/application/flow/step_node/mcp_node/impl/base_mcp_node.py的execute函数存在os命令注入，可能导致远程执行任意代码。

CVSS 6.3 · Medium EPSS 1.77% · P77

Possible ATT&CK Techniques 1 AI

T1059.004 · Unix Shell
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I. Basic Information for CVE-2026-6108

Vulnerability Information
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Vulnerability Title
1Panel-dev MaxKB Model Context Protocol Node base_mcp_node.py execute os command injection
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
MaxKB 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MaxKB是1Panel-dev开源的一款基于大语言模型和 RAG 的开源知识库问答系统。 MaxKB 2.6.1及之前版本存在操作系统命令注入漏洞，该漏洞源于Model Context Protocol Node组件中文件apps/application/flow/step_node/mcp_node/impl/base_mcp_node.py的execute函数存在os命令注入，可能导致远程执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
1Panel-dev MaxKB 2.6.0 cpe:2.3:a:maxkb:maxkb:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-6108

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III. Intelligence Information for CVE-2026-6108

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Vendor Advisories for CVE-2026-6108 (1)

Other References for CVE-2026-6108 (1)

IV. Related Vulnerabilities

Same product: MaxKB
Same vendor: 1Panel-dev
Same weakness: CWE-78

V. Comments for CVE-2026-6108

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