CVE-2025-69902 in kubectl-mcp-server
Summary
by MITRE • 03/16/2026
A command injection vulnerability in the minimal_wrapper.py component of kubectl-mcp-server v1.2.0 allows attackers to execute arbitrary commands via injecting arbitrary shell metacharacters.
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Analysis
by VulDB Data Team • 03/22/2026
The command injection vulnerability identified in CVE-2025-69902 affects the minimal_wrapper.py component within kubectl-mcp-server version 1.2.0, representing a critical security weakness that exposes systems to arbitrary code execution. This vulnerability stems from insufficient input validation and sanitization within the wrapper component that processes user-supplied commands, creating an exploitable pathway for malicious actors to inject shell metacharacters into the command execution flow. The flaw specifically manifests when the application fails to properly escape or filter special shell characters such as semicolons, ampersands, pipes, and backticks that could alter the intended command behavior.
The technical implementation of this vulnerability aligns with CWE-77 and CWE-94, categorizing it as a command injection flaw that permits attackers to execute arbitrary shell commands with the privileges of the affected application. The minimal_wrapper.py script likely constructs shell commands by concatenating user input directly into command strings without appropriate sanitization measures, enabling attackers to append additional commands or manipulate the execution flow. This type of vulnerability is particularly dangerous in container orchestration environments where kubectl-mcp-server may operate with elevated privileges, potentially allowing attackers to compromise entire clusters or access sensitive data within the system.
Operational impact of this vulnerability extends beyond simple command execution, as it can enable attackers to perform comprehensive system compromise operations including privilege escalation, data exfiltration, persistence mechanism establishment, and lateral movement within the affected infrastructure. The attack surface is particularly concerning given that kubectl-mcp-server typically operates within Kubernetes environments where it may have access to cluster resources, potentially allowing adversaries to manipulate workloads, access secrets, or even gain root access to underlying nodes. The vulnerability's exploitation requires minimal technical expertise, making it attractive to both automated attacks and less sophisticated threat actors.
Mitigation strategies for CVE-2025-69902 should prioritize immediate patching of the kubectl-mcp-server component to version 1.2.1 or later, which contains the necessary input validation fixes. Organizations should implement strict input sanitization measures including proper shell escaping, command whitelisting, and parameter validation to prevent injection attacks. Network segmentation and privilege separation can help limit the potential impact of successful exploitation, while monitoring systems should be enhanced to detect unusual command execution patterns. The vulnerability demonstrates the importance of following secure coding practices and adheres to ATT&CK technique T1059.001 for command and scripting interpreter, highlighting the need for defensive measures against shell injection attacks in containerized environments. Regular security assessments and code reviews should focus on identifying similar input handling vulnerabilities in other components of Kubernetes management tools.