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CVE-2025-66404— mcp-server-kubernetes potential security issue in exec_in_pod tool

Quick assessment

Affected
Flux159 mcp-server-kubernetes
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.

MCP Server Kubernetes是Suyog Sonwalkar个人开发者的一个用于kubernetes管理的MCP服务器。 MCP Server Kubernetes 2.9.8之前版本存在命令注入漏洞，该漏洞源于exec_in_pod工具未验证用户输入，可能导致命令注入攻击。

CVSS 6.4 · Medium EPSS 1.50% · P72
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I. Basic Information for CVE-2025-66404

Vulnerability Information
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Vulnerability Title
mcp-server-kubernetes potential security issue in exec_in_pod tool
Source: CVE Program / CVE List V5
Vulnerability Description
MCP Server Kubernetes is an MCP Server that can connect to a Kubernetes cluster and manage it. Prior to 2.9.8, there is a security issue exists in the exec_in_pod tool of the mcp-server-kubernetes MCP Server. The tool accepts user-provided commands in both array and string formats. When a string format is provided, it is passed directly to shell interpretation (sh -c) without input validation, allowing shell metacharacters to be interpreted. This vulnerability can be exploited through direct command injection or indirect prompt injection attacks, where AI agents may execute commands without explicit user intent. This vulnerability is fixed in 2.9.8.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
MCP Server Kubernetes 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MCP Server Kubernetes是Suyog Sonwalkar个人开发者的一个用于kubernetes管理的MCP服务器。 MCP Server Kubernetes 2.9.8之前版本存在命令注入漏洞，该漏洞源于exec_in_pod工具未验证用户输入，可能导致命令注入攻击。
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
Flux159 mcp-server-kubernetes < 2.9.8 -

II. Public POCs for CVE-2025-66404

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III. Intelligence Information for CVE-2025-66404

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IV. Related Vulnerabilities

Same product: mcp-server-kubernetes
Same vendor: Flux159
Same weakness: CWE-77

V. Comments for CVE-2025-66404

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