Cuba-Exec

Advanced shell command execution for AI agents — a Model Context Protocol (MCP) server with security policy engine, process lifecycle management, bounded output capture, POSIX signals, and token-efficient responses.

→ LeandroPG19/cuba-exec · listed on glama

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// key findings

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configCUBA_EXEC_ALLOWED_COMMANDS— Command Allowlist Only listed commands can execute

configCUBA_EXEC_BLOCKED_COMMANDS— Command Blocklist Dangerous commands always rejected

configCUBA_EXEC_ALLOWED_DIRS— Directory Restriction Restrict cwd to allowed paths (anti-traversal)

configCUBA_EXEC_AUDIT— Audit Logging Structured JSON log of every execution

configCUBA_EXEC_MAX_PROCS— Max concurrent processes 20

configCUBA_EXEC_BUFFER_SIZE— Output buffer size 64KB

configCUBA_EXEC_TTL— Idle process TTL 1 hour

configCUBA_EXEC_SHUTDOWN_TIMEOUT— Shutdown timeout 5s

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 5 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/leandropg19-cuba-exec-112rul)](https://m8ven.ai/mcp/leandropg19-cuba-exec-112rul)

commit: c9dc3c1b2b434ee4dbc33e43d2ca4e549920b57a

code hash: 0b08d03db32a85a248bca09ec2272dcf4c4cf981548c9a25be6468a6a0388d12

verified: 6/21/2026, 10:29:01 AM

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