CVE-2025-66404
December 03, 2025
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.
Affected Packages
https://github.com/Flux159/mcp-server-kubernetes.git (GITHUB):
Affected version(s) >=v0.2.0 <v2.9.8Fix Suggestion:
Update to version v2.9.8https://github.com/Flux159/mcp-server-kubernetes.git (GITHUB):
Affected version(s) >=0.2.2-pre.147f4eb <2.9.8Fix Suggestion:
Update to version 2.9.8mcp-server-kubernetes (NPM):
Affected version(s) >=0.1.0 <2.9.8Fix Suggestion:
Update to version 2.9.8Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.4
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Neutralization of Special Elements used in a Command ('Command Injection')
EPSS
Base Score:
0.33
