https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Wed, 30 Sep 2026 07:58:54 +0000 https://vulnerability.circl.lu/vuln/cve-2025-66404 <p><strong>Affected:</strong> Flux159 mcp-server-kubernetes</p> <p>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.</p> <p><strong>Affected:</strong> Flux159 mcp-server-kubernetes</p> <p>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.</p> https://vulnerability.circl.lu/vuln/cve-2025-66404 https://vulnerability.circl.lu/vuln/ghsa-wvxp-jp4w-w8wg <p><strong>Affected:</strong> npm: mcp-server-kubernetes</p> <p>### Summary 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.</p> <p>### Details The MCP Server exposes the `exec_in_pod` tool to execute commands inside Kubernetes pods. The tool supports both array and string command formats. The Kubernetes Exec API (via `@kubernetes/client-node`) accepts commands as an array of strings, which executes commands directly without shell interpretation. However, when a string format is provided, the code automatically wraps it in shell execution (`sh -c`), which interprets shell metacharacters without any input validation.</p> <p>When string commands contain shell metacharacters (e.g., `;`, `&amp;&amp;`, `|`, `&gt;`, `&lt;`, `$`), they are interpreted by the shell rather than being passed as literal arguments, allowing command injection. This vulnerability can be exploited in two ways:</p> <p>1. **Direct command injection**: Users or attackers with access to the MCP server can directly inject malicious commands through the tool interface. 2. **Indirect prompt injection**: Malicious instructions embedded in data (e.g., pod logs)…</p> <p><strong>Affected:</strong> npm: mcp-server-kubernetes</p> <p>### Summary A security issue exists in the `exec_in_pod` tool of the `mcp-server-kubernetes` MCP Server. The tool accepts user-provided commands in both array and string formats. When a string format is provided, it is passed directly to shell interpretation (`sh -c`) without input validation, allowing shell metacharacters to be interpreted. This vulnerability can be exploited through direct command injection or indirect prompt injection attacks, where AI agents may execute commands without explicit user intent.</p> <p>### Details The MCP Server exposes the `exec_in_pod` tool to execute commands inside Kubernetes pods. The tool supports both array and string command formats. The Kubernetes Exec API (via `@kubernetes/client-node`) accepts commands as an array of strings, which executes commands directly without shell interpretation. However, when a string format is provided, the code automatically wraps it in shell execution (`sh -c`), which interprets shell metacharacters without any input validation.</p> <p>When string commands contain shell metacharacters (e.g., `;`, `&amp;&amp;`, `|`, `&gt;`, `&lt;`, `$`), they are interpreted by the shell rather than being passed as literal arguments, allowing command injection. This vulnerability can be exploited in two ways:</p> <p>1. **Direct command injection**: Users or attackers with access to the MCP server can directly inject malicious commands through the tool interface. 2. **Indirect prompt injection**: Malicious instructions embedded in data (e.g., pod logs)…</p> https://vulnerability.circl.lu/vuln/ghsa-wvxp-jp4w-w8wg