Is mcp-n8n-builder safe to use?

mcp-n8n-builder has a security risk score of 100/100 (CRITICAL risk). Our security analysis detected 87 findings. Review the detailed security assessment below to understand the specific risks before installation.

What are the security risks of mcp-n8n-builder?

Based on our automated security analysis, mcp-n8n-builder presents critical risk level. The extension is analyzed for malware patterns, secret exposure, network communications, permissions, and supply chain vulnerabilities.

How is the security score calculated?

Risky Plugins calculates security scores using weighted categories: severity of findings (25 points max), malware detections (35 points), secret exposure (28 points), network communications (10 points), and obfuscation (10 points). Scores range from 0-100, with higher scores indicating greater risk.

What does CRITICAL, HIGH, MEDIUM, LOW, MINIMAL risk mean?

CRITICAL (80-100): Severe security issues like malware. HIGH (60-79): Significant vulnerabilities. MEDIUM (40-59): Moderate security concerns. LOW (20-39): Minor issues. MINIMAL (0-19): Very low risk. Always review findings before installing any extension.

Is "mcp-n8n-builder" on MCP Registry Safe to Install?

Name: mcp-n8n-builder
Availability: InStock
Author: spences10

spences10 · mcp · v0.0.4

MCP server for building n8n workflows

Risk Assessment

Analyzed

100

out of 100

CRITICAL

87 security findings detected across all analyzers

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

Severity Breakdown

Critical

High

Medium

Low

Info

Finding Categories

Malware Signatures

Secrets

Network

IoC Indicators

YARA Rules Matched

10 rules(37 hits)

postinstall crypto operations postinstall persistence mechanism postinstall system command postinstall file download postinstall network communication postinstall file manipulation postinstall obfuscation postinstall registry modification postinstall environment access credential env files

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

MCP server for building n8n workflows

Detailed Findings

57 total

YARA Rule Matches

10 rules

Indicators of Compromise

Network indicators, suspicious strings, and potential IoCs extracted during analysis

URLs

Domains

Strings

All Indicators · 30

Domain

detected Domain: obj.name

XIOC detected Domain: obj.name

extracted_from_files

Domain

detected Domain: result.name

XIOC detected Domain: result.name

extracted_from_files

Domain

detected Domain: this.is

XIOC detected Domain: this.is

extracted_from_files

Domain

detected Domain: date.now

XIOC detected Domain: date.now

extracted_from_files

Domain

detected Domain: node.name

XIOC detected Domain: node.name

extracted_from_files

Domain

detected Domain: node.group

XIOC detected Domain: node.group

extracted_from_files

Domain

detected Domain: data.map

XIOC detected Domain: data.map

extracted_from_files

Domain

detected Domain: wf.id

XIOC detected Domain: wf.id

extracted_from_files

Domain

detected Domain: github.com

XIOC detected Domain: github.com

extracted_from_files

Domain

detected Domain: server.run

XIOC detected Domain: server.run

extracted_from_files

Domain

detected Domain: options.name

XIOC detected Domain: options.name

extracted_from_files

Domain

detected Domain: response.data

XIOC detected Domain: response.data

extracted_from_files

Domain

detected Domain: response.id

XIOC detected Domain: response.id

extracted_from_files

Domain

detected Domain: ai.chat

XIOC detected Domain: ai.chat

extracted_from_files

Domain

detected Domain: n8n-nodes-base.aws

XIOC detected Domain: n8n-nodes-base.aws

extracted_from_files

Domain

detected Domain: wf.name

XIOC detected Domain: wf.name

extracted_from_files

Domain

detected Domain: b.name

XIOC detected Domain: b.name

extracted_from_files

Domain

detected Domain: args.id

XIOC detected Domain: args.id

extracted_from_files

Domain

detected Domain: exec.id

XIOC detected Domain: exec.id

extracted_from_files

Domain

detected Domain: tag.name

XIOC detected Domain: tag.name

extracted_from_files

Domain

detected Domain: obj.id

XIOC detected Domain: obj.id

extracted_from_files

URL

detected URL: https://github.com/modelcontextprotocol)

XIOC detected URL: https://github.com/modelcontextprotocol)

extracted_from_files

Domain

detected Domain: readme.md

XIOC detected Domain: readme.md

extracted_from_files

Domain

detected Domain: n8n-nodes-base.box

XIOC detected Domain: n8n-nodes-base.box

extracted_from_files

Domain

detected Domain: error.name

XIOC detected Domain: error.name

extracted_from_files

Domain

detected Domain: workflow.id

XIOC detected Domain: workflow.id

extracted_from_files

Domain

detected Domain: workflow.name

XIOC detected Domain: workflow.name

extracted_from_files

Domain

detected Domain: nodes.map

XIOC detected Domain: nodes.map

extracted_from_files

URL

detected URL: https://n8n.io/)

XIOC detected URL: https://n8n.io/)

extracted_from_files

Domain

detected Domain: n8n.io

XIOC detected Domain: n8n.io

extracted_from_files

Security Analysis Summary

Security Analysis Overview

mcp-n8n-builder is a mcp extension published by spences10. Version 0.0.4 has been analyzed by the Risky Plugins security platform, receiving a risk score of 100/100 (CRITICAL risk) based on 87 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

Critical: 1 finding(s)
High: 47 finding(s)
Medium: 36 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

mcp-n8n-builder is published by spences10 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.

Source Code Viewer

Source Code Not Available

Source code is not available for this version of the extension.

Frequently Asked Questions

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Risk Assessment

Severity Breakdown

Finding Categories

YARA Rules Matched

MCP Server Analysis

About This Extension

Detailed Findings

MCP-TOOL-TOOL-POISONING-dist/workflow-composition-guide.js-216

MCP-TOOL-CREDENTIAL-ACCESS-dist/config.js-21

MCP-TOOL-CREDENTIAL-ACCESS-dist/index.js-22

MCP-TOOL-CREDENTIAL-ACCESS-dist/config.js-20

MCP-TOOL-CREDENTIAL-ACCESS-dist/config.js-13

MCP-TOOL-CREDENTIAL-ACCESS-dist/config.js-12

MCP-TOOL-CREDENTIAL-ACCESS-dist/config.js-26

MCP-TOOL-CREDENTIAL-ACCESS-dist/schemas.js-10

MCP-TOOL-CREDENTIAL-ACCESS-dist/config.js-18

MCP-TOOL-CREDENTIAL-ACCESS-dist/n8n-api-client.js-9

MCP-TOOL-CREDENTIAL-ACCESS-dist/node-validator.js-19

NET-FETCH-dist/n8n-api-client.js-30

MCP-TOOL-NETWORK-ACCESS-dist/n8n-api-client.js-30

MCP-TOOL-FILESYSTEM-ACCESS-dist/config.js-7

NET-FETCH-dist/node-validator.js-110

MCP-TOOL-NETWORK-ACCESS-dist/node-validator.js-110

MCP-TOOL-FILESYSTEM-ACCESS-dist/config.js-1

HASH-81ecff853a05890c

HASH-2c926bb4aabc080d

HASH-9704469788a6f6d9

YARA Rule Matches

postinstall crypto operations

postinstall persistence mechanism

postinstall system command

postinstall file download

postinstall network communication

postinstall file manipulation

postinstall obfuscation

postinstall registry modification

postinstall environment access

credential env files

Indicators of Compromise

All Indicators · 30

Security Analysis Summary

Security Analysis Overview

Risk Assessment

Findings Breakdown

What Was Analyzed

Developer Information

Recommendation

Frequently Asked Questions

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mcp-sqlite-tools

mcpick

mcp-turso-cloud

mcp-tavily-search

mcp-svelte-docs

mcp-duckduckgo-search