CLI Executor
Provides a tool for executing local CLI commands asynchronously using FastMCP and asyncio, handling command arguments securely and offering error handling for failed commands.
0/100
0Tools
6Findings
1Stars
—Downloads
Mar 19, 2026Last Scanned
Score Breakdown5 categories
Code75
Dependencies85
Config39
Description100
Behavior100
OWASP MCP Top 10 Coverage
MCP10-supply-chainMCP10-supply-chainFail
MCP02-tool-poisoningMCP02-tool-poisoningPass
MCP07-insecure-configMCP07-insecure-configFail
MCP08-dependency-vulnMCP08-dependency-vulnFail
MCP01-prompt-injectionMCP01-prompt-injectionPass
MCP03-command-injectionMCP03-command-injectionFail
MCP04-data-exfiltrationMCP04-data-exfiltrationPass
MCP09-logging-monitoringMCP09-logging-monitoringPass
MCP05-privilege-escalationMCP05-privilege-escalationPass
MCP06-excessive-permissionsMCP06-excessive-permissionsFail
Findings6
3critical
1high
1medium
1low
0informational
criticalC1Command InjectionMCP03-command-injectionAML.T0054
Pattern "exec\s*\(" matched in source_code: "exec(" (at position 219)
Replace exec()/execSync() with execFile() and pass arguments as an array, never as a string. Validate all inputs against an allowlist before use in any shell context. For subprocess.run, always pass a list and shell=False.
criticalL7Transitive MCP Server DelegationMCP06-excessive-permissionsAML.T0054
Pattern "(?:connect|initialize).*(?:mcp|modelcontextprotocol).*(?:server|endpoint|url)" matched in source_code: "Initialize FastMCP server" (at position 143)
MCP servers MUST NOT create client connections to other MCP servers without explicit user disclosure. If delegation is required, declare all downstream servers in the server's capabilities and tool descriptions. Never forward user credentials to sub-servers. Implement a trust boundary between the approved server and any delegated servers. Log all transitive delegations for audit.
criticalQ13MCP Bridge Package Supply Chain AttackMCP10-supply-chainAML.T0054
Pattern "(?:mcp|fastmcp|langchain-mcp|llama-index-mcp)(?:>=|~=|==)?(?!\d)" matched in source_code: "mcp" (at position 53)
MCP bridge packages (mcp-remote, mcp-proxy, @modelcontextprotocol/sdk, fastmcp) are high-value supply chain targets — CVE-2025-6514 (CVSS 9.6) in mcp-remote affected 437,000+ installs. Always pin exact versions (no ^ or ~ ranges). Use lockfiles (package-lock.json, pnpm-lock.yaml, uv.lock). Never run `npx mcp-remote` without version pinning. Verify package integrity with `npm audit` or `pip-audit` before deployment. Reference: CVE-2025-6514, OWASP ASI04.
highD1Known CVEs in DependenciesMCP08-dependency-vuln
Dependency "mcp@null" has known CVEs:
Update dependencies to versions that patch known CVEs. Run 'npm audit fix' or 'pip-audit' to identify and resolve vulnerable dependencies.
mediumK17Missing Timeout or Circuit BreakerMCP07-insecure-configAML.T0054
Pattern "(?:exec|execSync|spawn|subprocess\.run|os\.system)\s*\((?!.*(?:timeout|kill|maxBuffer|signal))" matched in source_code: "exec(" (at position 219)
Add timeouts to ALL external calls: HTTP requests (30s), database queries (10s), subprocess execution (60s), and MCP tool calls (30s). Implement circuit breakers that open after N consecutive failures (e.g., opossum, cockatiel). Use AbortSignal for cancellable operations. Required by EU AI Act Art. 15 and OWASP ASI08.
lowF4MCP Spec Non-ComplianceMCP07-insecure-config
Server fails MCP spec compliance checks: required:server_name; required:server_version; required:protocol_version; recommended:tool_descriptions; recommended:parameter_descriptions
Follow the MCP specification for server metadata. Include server name, version, and protocol version. Provide descriptions for all tools and parameters.
Security Category Deep Dive
Sub-Category Tree · Remediation Roadmap · Attack Stories · Compliance Overlay · ATLAS Techniques · Maturity Model
Prompt Injection
Prompt & context manipulation attacks
69
MATURITY
14
RULES
5
SUB-CATS
1
GAPS
64%
IMPL.
56
TESTS
1
STORIES
100%3 rules
Injection via tool descriptions and parameter fields
GAP-001Prompt Injection Coverage GapMissing detection coverage for emerging prompt injection attack variants not addressed by current rules
100%4 rules
Hidden instructions via external content and tool responses
100%2 rules
Context window saturation and prior-approval exploitation
100%3 rules
Payload hiding via invisible chars, base64, schema fields
100%2 rules
Injection via prompt templates and runtime tool output