registry / run-mcp / 1.7.4

run-mcp@1.7.4

A smart proxy and interactive REPL for Model Context Protocol (MCP) servers

Static Scan Results

scanned 3h ago · by rust-scanner

Static analysis flagged 13 finding(s) at 72.0% confidence. This version is warn-only unless an AI or security-team review confirms malicious behavior.

Static reason

One or more suspicious static signals were detected.

Decision evidence

public snapshot

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

scanned 1 file(s), 361 KB of source, external domains: 127.0.0.1, datatracker.ietf.org, json-schema.org

Source & flagged code

4 flagged

dist/index.jsView file

Lines 1-29javascript

1#!/usr/bin/env node

3// src/index.ts

4import { program } from "commander";

5import { createConnection, createServer } from "net";

6import { existsSync as existsSync6 } from "fs";

7import { mkdir as mkdir3, readFile as readFile5, rm, writeFile as writeFile3 } from "fs/promises";

8import { join as join6, resolve as resolve3 } from "path";

9import { tmpdir as tmpdir3 } from "os";

10import { spawn } from "child_process";

High

Child Process

Package source references child process execution.

dist/index.jsView on unpkg · L9

12// src/config-scanner.ts

13import { existsSync } from "fs";

14import { readFile, readdir } from "fs/promises";

15import { homedir } from "os";

16import path from "path";

17import process2 from "process";

18import { input, select } from "@inquirer/prompts";

19function getConfigPaths() {

20 const home = homedir();

21 const cwd = process2.cwd();

Low

Weak Crypto

Package source references weak cryptographic algorithms.

dist/index.jsView on unpkg · L4

22 const isWin = process2.platform === "win32";

23 const isMac = process2.platform === "darwin";

24 const appData = process2.env.APPDATA || path.join(home, "AppData", "Roaming");

25 let claudeDesktopGlob;

26 if (isWin) {

27 claudeDesktopGlob = path.join(appData, "Claude", "claude_desktop_config.json");

28 } else if (isMac) {

29 claudeDesktopGlob = path.join(

Lines 2041-2081javascript

2041 let args = [...this.args];

2042 let modeToUse = this.sandboxMode;

2043 if (modeToUse === "auto") {

2044 if (process.platform === "darwin") {

2045 if (isCommandAvailable("sandbox-exec")) {

Lines 10001-10041javascript

10001}

10002async function handleHeadlessSession(sessionName, targetCommand, operation, opts, subcommandUsage) {

10003 let session = await getSession(sessionName);

10004 if (!session) {

10005 if (!activeTargetCommand) {

Source & flagged code

4 flagged · loading source

dist/index.jsView file

9import { tmpdir as tmpdir3 } from "os"; L10: import { spawn } from "child_process"; L11:

High

Child Process

Package source references child process execution.

dist/index.jsView on unpkg · L9

10021daemonArgs.push(...target); L10022: const daemonProcess = spawn("node", [binPath, ...daemonArgs], { L10023: detached: true, ... L10030: if (session) break; L10031: await new Promise((resolve4) => setTimeout(resolve4, 100)); L10032: attempts++; ... L10034: if (!session) { L10035: process.stderr.write( L10036: `Error: Failed to spawn background daemon for session "${sessionName}".

High

Command Output Exfiltration

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

dist/index.jsView on unpkg · L10021

2061const mxcModule = "@microsoft/mxc-sdk"; L2062: await import(mxcModule); L2063: hasMxc = true;

Medium

Dynamic Require

Package source references dynamic require/import behavior.

dist/index.jsView on unpkg · L2061

4import { program } from "commander"; L5: import { createConnection, createServer } from "net"; L6: import { existsSync as existsSync6 } from "fs"; ... L9: import { tmpdir as tmpdir3 } from "os"; L10: import { spawn } from "child_process"; L11: ... L19: function getConfigPaths() { L20: const home = homedir(); L21: const cwd = process2.cwd(); ... L73: const content = await readFile(file, "utf8"); L74: const json = JSON.parse(content); L75: let mcpServers;

Low

Weak Crypto

Package source references weak cryptographic algorithms.

dist/index.jsView on unpkg · L4

Findings

3 High4 Medium6 Low

HighChild Processdist/index.js

HighShell

HighCommand Output Exfiltrationdist/index.js

MediumDynamic Requiredist/index.js

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

LowNon Install Lifecycle Scripts

LowScripts Present

LowWeak Cryptodist/index.js

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

Source & flagged code

4 flagged

dist/index.jsView file

Lines 1-29javascript

1#!/usr/bin/env node

3// src/index.ts

4import { program } from "commander";

5import { createConnection, createServer } from "net";

6import { existsSync as existsSync6 } from "fs";

7import { mkdir as mkdir3, readFile as readFile5, rm, writeFile as writeFile3 } from "fs/promises";

8import { join as join6, resolve as resolve3 } from "path";

9import { tmpdir as tmpdir3 } from "os";

10import { spawn } from "child_process";

High

Child Process

Package source references child process execution.

dist/index.jsView on unpkg · L9

12// src/config-scanner.ts

13import { existsSync } from "fs";

14import { readFile, readdir } from "fs/promises";

15import { homedir } from "os";

16import path from "path";

17import process2 from "process";

18import { input, select } from "@inquirer/prompts";

19function getConfigPaths() {

20 const home = homedir();

21 const cwd = process2.cwd();

Low

Weak Crypto

Package source references weak cryptographic algorithms.

dist/index.jsView on unpkg · L4

22 const isWin = process2.platform === "win32";

23 const isMac = process2.platform === "darwin";

24 const appData = process2.env.APPDATA || path.join(home, "AppData", "Roaming");

25 let claudeDesktopGlob;

26 if (isWin) {

27 claudeDesktopGlob = path.join(appData, "Claude", "claude_desktop_config.json");

28 } else if (isMac) {

29 claudeDesktopGlob = path.join(

Lines 2041-2081javascript

2041 let args = [...this.args];

2042 let modeToUse = this.sandboxMode;

2043 if (modeToUse === "auto") {

2044 if (process.platform === "darwin") {

2045 if (isCommandAvailable("sandbox-exec")) {

Lines 10001-10041javascript

10001}

10002async function handleHeadlessSession(sessionName, targetCommand, operation, opts, subcommandUsage) {

10003 let session = await getSession(sessionName);

10004 if (!session) {

10005 if (!activeTargetCommand) {