Is "@modelcontextprotocol/conformance" on MCP Registry Safe to Install?

GitHub Actions · mcp · v0.1.16

A framework for testing MCP (Model Context Protocol) client and server implementations against the specification.

Risk Assessment

Analyzed
82.52
out of 100
HIGH

23 security findings detected across all analyzers

MCP server analyzed for tool poisoning, prompt injection, and data exfiltration

Severity Breakdown

0
Critical
18
High
2
Medium
0
Low
0
Info

Finding Categories

16
Malware Signatures
2
Network

YARA Rules Matched

9 rules(16 hits)
postinstall network communication postinstall system command credential env files postinstall crypto operations postinstall obfuscation UsingCommandLineArguments postinstall file manipulation RedirectToUnknownPath postinstall file download

MCP Server Analysis

MCP servers expose tools and resources to AI assistants. Unlike browser extensions, they run as standalone processes with direct system access. Tool definitions are analyzed for prompt injection, data exfiltration, and tool poisoning patterns.

About This Extension

A framework for testing MCP (Model Context Protocol) client and server implementations against the specification.

Detailed Findings

23 total

YARA Rule Matches

9 rules

Security Analysis Summary

Security Analysis Overview

@modelcontextprotocol/conformance is a mcp extension published by GitHub Actions. Version 0.1.16 has been analyzed by the Risky Plugins security platform, receiving a risk score of 82.52/100 (HIGH risk) based on 23 security findings.

Risk Assessment

This extension presents critical security risk. Severe issues were detected, potentially including malware indicators, exposed secrets, or dangerous behaviors. Installation is strongly discouraged until these issues are addressed.

Findings Breakdown

  • High: 18 finding(s)
  • Medium: 2 finding(s)

What Was Analyzed

The security assessment covers multiple analysis categories:

  • Malware Detection: YARA rule matching against 2,400+ malware signatures
  • Secret Detection: Scanning for exposed API keys, tokens, and credentials
  • Static Analysis: Code-level security analysis for common vulnerability patterns
  • Network Analysis: Detection of suspicious network communications and endpoints
  • Obfuscation Detection: Identification of code obfuscation techniques

Developer Information

@modelcontextprotocol/conformance is published by GitHub Actions on the mcp marketplace.

Recommendation

This extension is not recommended for installation without thorough manual review. Consider alternatives with lower risk scores, or contact the developer to address the identified security concerns.

Frequently Asked Questions

Similar Extensions

Related extensions from the same publisher or marketplace

snow-flow

GitHub Actions

CRITICAL

@frontmcp/uipack

GitHub Actions

CRITICAL

@stainless-api/gitlab-internal

GitHub Actions

CRITICAL

@inkeep/agents-manage-ui

GitHub Actions

CRITICAL

documcp

GitHub Actions

CRITICAL

proofscan

GitHub Actions

CRITICAL