CyberRota Analysis
AI-GeneratedThe python_sandbox_server component of MCP Context Forge versions prior to 1.0.2 is vulnerable due to improper exposure of the raw getattr function, allowing attackers to traverse the Python class hierarchy and execute arbitrary OS commands with server process privileges. This critical vulnerability can be exploited without authentication, particularly through the execute_code MCP tool, posing significant risks to systems using this component. Organizations utilizing MCP Context Forge should prioritize upgrading to version 1.0.2 to mitigate this severe security risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
MCP Context Forge is an AI gateway, registry, and proxy for MCP, A2A, REST, and gRPC APIs. Prior to 1.0.2, the python_sandbox_server in mcp-servers/python/python_sandbox_server/src/python_sandbox_server/server_fastmcp.py exposes raw getattr through safe_builtins, omits a required _getattr_ guard, and relies on validate_code checks for literal dangerous dunder strings. An attacker can construct dunder names at runtime, traverse the Python class hierarchy, reach subprocess.Popen, and execute OS commands with the server process privileges through the execute_code MCP tool. The HTTP/SSE transport can expose this tool without authentication, while stdio-only deployments have reduced network reachability. The issue affects the python_sandbox_server subproject and does not directly affect the core Context Forge gateway or proxy components. This issue is fixed in version 1.0.2.