CVE-2025-66404

mcp-server-kubernetes potential security issue in exec_in_pod tool

Published Dec 3, 2025 CVSS 3.1 · 6.4 Medium EPSS 1.5% KEV · Not listed
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.

Analysis

No analysis available yet

Remediation

No remediation available yet

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-wvxp-jp4w-w8wg mcp-server-kubernetes has potential security issue in exec_in_pod tool
History
Type Values Removed Values Added
First Time appeared Suyogs
Suyogs mcp-server-kubernetes
CPEs cpe:2.3:a:suyogs:mcp-server-kubernetes:*:*:*:*:*:node.js:*:*
Vendors & Products Suyogs
Suyogs mcp-server-kubernetes
Type Values Removed Values Added
First Time appeared Flux159
Flux159 mcp-server-kubernetes
Vendors & Products Flux159
Flux159 mcp-server-kubernetes
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title mcp-server-kubernetes potential security issue in exec_in_pod tool
Weaknesses CWE-77
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H'}

Weaknesses
  • CWE-77

    Improper Neutralization of Special Elements used in a Command ('Command Injection')

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Dec 3, 2025, 8:54 PM
Reserved
Nov 28, 2025, 11:33 PM
Status
Analyzed
Published
Dec 3, 2025, 9:15 PM
Modified
Jun 17, 2026, 9:56 AM