registry / local-mcp / 3.0.409

local-mcp@3.0.409

⚠ Under review

Let ChatGPT, Claude, Cursor & any MCP client actually use your Mac — read & reply to email, manage your calendar, text over iMessage, find files, work with Teams, Slack & Office. On your Mac, no API keys, free.

Static Scan Results

scanned 19d ago · by rust-scanner

Static analysis completed at 0.0% confidence. No malicious behavior was detected; 24 low-signal pattern(s) were surfaced and cleared.

Static reason

Automated AI review exhausted its retry budget. This package remains unresolved and must not warn or block users.

Decision evidence

public snapshot

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStringsUrlStrings

Manifest

NoLicense

scanned 4 file(s), 124 KB of source, external domains: download.local-mcp.com, local-mcp.com, office-mcp-production.up.railway.app, www.apple.com

Source & flagged code

16 flagged

package.jsonView file

Lines 1-30json

2 "name": "local-mcp",

3 "version": "3.0.409",

4 "description": "Let ChatGPT, Claude, Cursor & any MCP client actually use your Mac — read & reply to email, manage your calendar, text over iMessage, find files, work with Teams, Slack & Office. On your Mac, no API keys, free.",

5 "main": "index.js",

6 "bin": {

7 "local-mcp": "index.js"

8 },

9 "scripts": {

10 "postinstall": "node postinstall.js",

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L10

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg · L10

11 "test": "node --test test/*.test.js"

12 },

13 "files": [

14 "index.js",

15 "download.js",

16 "setup.js",

17 "postinstall.js",

18 "README.md"

19 ],

High

Unverified Remote Native Payload Install

Install-time source downloads a native archive from a fixed external host without transport verification, extracts it, and installs an executable payload.

package.jsonView on unpkg · L7

20 "engines": {

21 "node": ">=18"

22 },

23 "os": [

24 "darwin",

25 "linux",

26 "win32"

27 ],

28 "keywords": [

29 "mcp",

30 "model-context-protocol",

download.jsView file

Lines 1-32javascript

1'use strict'

2/**

3 * download.js — descarga y cachea el binario standalone de LMCP desde R2.

4 * El binario fue compilado con PyInstaller — no requiere Python instalado.

5 * Cache: ~/.local/share/local-mcp/bin/{version}/

6 */

8const https = require('https')

download.js#virtual:normalized:round1View file

7L8: const https = require("https") L9: const http = require("http") ... L12: const os = require("os") L13: const { execFileSync, execSync } = require("child_process") L14: L15: // On Windows, Git-Bash"s tar interprets \"C:...\" paths as \"host:path\" (SSH syntax).\n// Use the native Windows tar.exe from System32 instead, which handles Win32 paths correctl... L16: // the caller would otherwise mask as "not yet available" (#1256).

Critical

Same File Env Network Execution

A single source file combines environment access, network access, and code or shell execution with blocking evidence.

download.js#virtual:normalized:round1View on unpkg · L7

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 4

High

Semantic Analysis Limited

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

download.js#virtual:normalized:round1View on unpkg

setup.jsView file

Lines 894-934javascript

894 req.on('error', () => resolve(''))

895 req.on('timeout', () => { try { req.destroy() } catch {} resolve('') })

index.jsView file

•matchType = normalized_sha256 matchedPackage = local-mcp@3.0.381 matchedPath = index.js matchedIdentity = npm:bG9jYWwtbWNw:3.0.381 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

index.jsView on unpkg

Source & flagged code

16 flagged · loading source

package.jsonView file

•scripts.postinstall = node postinstall.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

7scripts.postinstall = node postinstall.js Install-time code downloads an unverified remote native archive, stages it locally, activates an executable path, and exposes it to process execution. L7: * local-mcp setup → configura todos los clientes detectados L8: * local-mcp setup --all → configura todos sin preguntar L9: */ ... L13: const os = require('os') L14: const { execSync, execFileSync } = require('child_process') L15: const download = require('./download') ... L69: ' # curl telemetry — no Node dependency, fire-and-forget', L70: ` curl -sf --max-time 3 -X POST "https://${BACKEND_HOST}/install-event" \\`, L71: ' -H "Content-Type: application/json" \\', L72: ' -d "{\\\"stage\\\":\\\"node_too_old\\\",\\\"version\\\":\\\"$NODE_VER\\\"}" &>/dev/null &', L73: ' pr

High

Unverified Remote Native Payload Install

Install-time source downloads a native archive from a fixed external host without transport verification, extracts it, and installs an executable payload.

package.jsonView on unpkg · L7

•scripts.postinstall = node postinstall.js

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg

download.jsView file

•Trigger-reachable chain: manifest.main -> index.js -> download.js Reachable file contains a blocking source-risk pattern.

Critical

Trigger Reachable Dangerous Capability

A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.

download.jsView on unpkg

12const os = require('os') L13: const { execFileSync, execSync } = require('child_process') L14:

High

Child Process

Package source references child process execution.

download.jsView on unpkg · L12

60// Only the win32 ladder reads/writes it: it's the side of the probe that can L61: // come up empty on a real machine (wmic gone, PowerShell blocked by policy), L62: // and consulting the same file the go-server already wrote/reads is what lets

High

Shell

Package source references shell execution.

download.jsView on unpkg · L60

7L8: const https = require('https') L9: const http = require('http') ... L12: const os = require('os') L13: const { execFileSync, execSync } = require('child_process') L14: ... L17: function extractTar(tarPath, destDir) { L18: const tarBin = process.platform === 'win32' L19: ? path.join(process.env.SystemRoot || 'C:\\Windows', 'System32', 'tar.exe') L20: : 'tar' ... L39: const CACHE_DIR = process.platform === 'win32' L40: ? path.join(process.env.LOCALAPPDATA || path.join(os.homedir(), 'AppData', 'Local'), 'local-mcp', 'bin')

High

Sandbox Evasion Gated Capability

Source gates dangerous network, credential, or execution behavior behind CI, host, platform, time, or geo fingerprint checks.

download.jsView on unpkg · L7

7Trigger-reachable persistence chain: manifest.main -> index.js -> download.js L7: L8: const https = require('https') L9: const http = require('http') ... L12: const os = require('os') L13: const { execFileSync, execSync } = require('child_process') L14: ... L17: function extractTar(tarPath, destDir) { L18: const tarBin = process.platform === 'win32' L19: ? path.join(process.env.SystemRoot || 'C:\\Windows', 'System32', 'tar.exe') L20: : 'tar' ... L39: const CACHE_DIR = process.platform === 'win32' L40: ? path.join(process.env.LOCALAPPDATA || path.join(os.homedir(), 'AppData', 'Local'), 'local-mcp', 'bin')

High

Trigger Reachable Persistence

A manifest entrypoint or package-local install chain reaches persistence behavior.

download.jsView on unpkg · L7

•matchType = normalized_sha256 matchedPackage = local-mcp@3.0.381 matchedPath = download.js matchedIdentity = npm:bG9jYWwtbWNw:3.0.381 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

download.jsView on unpkg

Medium

Install Persistence

Source writes installer persistence such as shell profile or service configuration.

download.jsView on unpkg · L7

download.js#virtual:normalized:round1View file

Critical

Same File Env Network Execution

A single source file combines environment access, network access, and code or shell execution with blocking evidence.

download.js#virtual:normalized:round1View on unpkg · L7

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 4

High

Semantic Analysis Limited

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

download.js#virtual:normalized:round1View on unpkg

setup.jsView file

45// Write a .cmd wrapper that Claude Desktop can execute L46: fs.mkdirSync(cacheDir, { recursive: true }) L47: const cmdPath = path.join(cacheDir, 'lmcp-launch.cmd') ... L52: const script = `@echo off\r\n"${npxAbsPath}" -y local-mcp@latest\r\n` L53: fs.writeFileSync(cmdPath, script) L54: return cmdPath ... L59: try { L60: fs.mkdirSync(cacheDir, { recursive: true }) L61: const launcherPath = path.join(cacheDir, 'lmcp-launch.sh') ... L77: ].join('\n') + '\n' L78: fs.writeFileSync(launcherPath, script, { mode: 0o755 }) L79: return launcherPath

Critical

Ai Agent Control Hijack

Source creates an unconsented AI-agent control surface through install-time mutation or a default unauthenticated remote skill channel.

setup.jsView on unpkg · L45

914if (!content.includes('local-mcp-server') && !content.includes('Local MCP')) return L915: process.stderr.write('\n Migrating legacy server LaunchAgent to tray supervision...\n') L916: // launchctl unload kills the running process AND prevents it from restarting L917: try { execFileSync('launchctl', ['unload', plistPath], { stdio: 'pipe' }) } catch { /* may already be unloaded */ } L918: try { fs.unlinkSync(plistPath) } catch { /* non-fatal */ } ... L928: try { L929: const https = require('https') L930: const payload = {

High

Command Output Exfiltration

Source combines command execution, command-output handling, and outbound requests; review data flow before blocking.

setup.jsView on unpkg · L914

914Trigger-reachable command-output exfiltration chain: scripts.postinstall -> postinstall.js -> setup.js L914: if (!content.includes('local-mcp-server') && !content.includes('Local MCP')) return L915: process.stderr.write('\n Migrating legacy server LaunchAgent to tray supervision...\n') L916: // launchctl unload kills the running process AND prevents it from restarting L917: try { execFileSync('launchctl', ['unload', plistPath], { stdio: 'pipe' }) } catch { /* may already be unloaded */ } L918: try { fs.unlinkSync(plistPath) } catch { /* non-fatal */ } ... L928: try { L929: const https = require('https') L930: const payload = {

High

Trigger Reachable Command Output Exfiltration

A manifest entrypoint or package-local install chain reaches command-output exfiltration behavior.

setup.jsView on unpkg · L914

index.jsView file

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

index.jsView on unpkg

Findings

3 Critical11 High5 Medium5 Low

CriticalSame File Env Network Executiondownload.js#virtual:normalized:round1

CriticalAi Agent Control Hijacksetup.js

CriticalTrigger Reachable Dangerous Capabilitydownload.js

HighInstall Time Lifecycle Scriptspackage.json

HighChild Processdownload.js

HighShelldownload.js

HighCommand Output Exfiltrationsetup.js

HighUnverified Remote Native Payload Installpackage.json

HighSandbox Evasion Gated Capabilitydownload.js

HighTrigger Reachable Command Output Exfiltrationsetup.js

HighTrigger Reachable Persistencedownload.js

HighSemantic Analysis Limiteddownload.js#virtual:normalized:round1

HighKnown Malware Source Similaritydownload.js

HighKnown Malware Source Similarityindex.js

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumNetwork

MediumEnvironment Vars

MediumInstall Persistencedownload.js

MediumStructural Risk Force Deep Review

LowScripts Present

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

LowNo License

Affected versions and remediation

This report applies to local-mcp@3.0.409.

See version security history for other recorded verdicts.

Review the evidence and your use of local-mcp@3.0.409 before allowing it. Restrict the permissions described in this report.
Choose an independently verified alternative or release. This report does not establish that other versions are safe.

Evidence last updated: 2026-09-19 07:41:58.166Z (UTC).