esp-mcp OS command injection via MCP tool parameters

high severity · published 2026-10-27

An attacker who can influence the agent's tool calls through prompt injection can inject shell metacharacters into parameters like target, port, project_path, or project_name. The injected code runs arbitrary commands on your machine with the permissions of the MCP server user.

CVE: CVE-2026-117567

Source: NVD

Get the fix

FixLane has a reviewed fix procedure for this incident: a read-only check first, then the fix. Ask the Telegram bot, or connect an AI agent to the FixLane MCP server and call get_fix_prompt with incident id 552 and your operating system.