registry / AI-agent capability abuse / @luckydraw/cumulus / 0.31.56

@luckydraw/cumulus@0.31.56

⚠ Under review

RLM-based CLI chat wrapper for Claude with external history context management

AI Security Review

scanned 3mo ago · by lpm-firewall-ai

The package is not concretely malicious by source evidence, but it deliberately enables a permission-bypassing local AI agent and optional outbound email capability. This warrants a warning for dangerous capability rather than a publish block.

Static reason

One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source

Trigger

User runs cumulus/cumulus-gateway or submits a gateway/TUI message.

Impact

A supplied prompt can drive a locally authorized agent with broad file/tool capability; configured email can transmit user-directed content.

Mechanism

Claude CLI execution with bypassPermissions and injected MCP tools.

AI rationale

Evidence

package.jsondist/lib/gateway.jsdist/tui/hooks/useClaudeProcess.jsdist/gateway/setup.jsdist/gateway/server.jsdist/gateway/gateway-agents-mcp.js~/.cumulus/gateway.config.json~/.cumulus/gateway.pid

Network endpoints3

registry.npmjs.org/@luckydraw/cumulus/latestapi.resend.complastic.luckydraw.dev

Decision evidence

public snapshot

AI called this Suspicious at 92.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

dist/lib/gateway.js spawns Claude with --permission-mode bypassPermissions.
dist/tui/hooks/useClaudeProcess.js uses the same bypass mode for TUI prompts.
dist/lib/gateway.js injects an extensive tool-routing/control prompt into spawned agents.
dist/gateway/gateway-agents-mcp.js exposes agent messaging, uploads, and configured email sending.

Evidence against

package.json has no preinstall/install/postinstall hook; prepare only invokes husky.
Gateway persistence is reached only by explicit cumulus-gateway setup and prompts before service installation.
Network calls are feature-specific: npm update check, configured Resend email, and Plastic publishing; no covert exfiltration found.
Gateway routes require an API key except documented public health/static/version endpoints.

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetworkShellWebSocket

Supply chain

Source & flagged code

7 flagged

dist/tui/hooks/useClaudeProcess.jsView file

3*/ L4: import { spawn } from 'child_process'; L5: import { useCallback, useRef } from 'react';

High

Child Process

Package source references child process execution.

dist/tui/hooks/useClaudeProcess.jsView on unpkg · L3

dist/lib/gateway.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = @luckydraw/cumulus@0.31.54 matchedIdentity = npm:QGx1Y2t5ZHJhdy9jdW11bHVz:0.31.54 similarity = 0.965 summary = stored previous version shares package body but lacks this dangerous source file

Critical

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

dist/lib/gateway.jsView on unpkg

1775// Windows: spawn() can't directly exec .cmd/.bat shims (CVE-2024-27980). L1776: // Routing through cmd.exe is required for the npm-installed `claude.cmd`. L1777: const isWindowsShim = process.platform === 'win32' && /\.(cmd|bat|ps1)$/i.test(resolvedClaudePath);

High

Shell

Package source references shell execution.

dist/lib/gateway.jsView on unpkg · L1775

dist/gateway/server.jsView file

16*/ L17: import { execFileSync } from 'child_process'; L18: import * as crypto from 'crypto'; L19: import * as fs from 'fs'; L20: import * as http from 'http'; L21: import * as os from 'os'; ... L64: headers: { 'Content-Type': 'application/json' }, L65: body: JSON.stringify({ L66: command: 'records.get', ... L69: }); L70: const record = (await upstream.json()); L71: if (record?.ok) {

Low

Weak Crypto

Package source references weak cryptographic algorithms.

dist/gateway/server.jsView on unpkg · L16

dist/gateway/setup.jsView file

7Trigger-reachable persistence chain: manifest.bin -> dist/gateway/daemon.js -> dist/gateway/setup.js L7: */ L8: import { execSync } from 'child_process'; L9: import { randomBytes } from 'crypto'; ... L12: import * as path from 'path'; L13: const CUMULUS_DIR = process.env.CUMULUS_DIR || path.join(os.homedir(), '.cumulus'); L14: const CONFIG_PATH = path.join(CUMULUS_DIR, 'gateway.config.json'); ... L17: '.git', L18: 'package.json', L19: 'Cargo.toml', ... L70: const readline = await import('readline'); L71: const rl = readline.createInterface({ input: process.stdin, output: process.stdout }); L72: const prompt = defaultValue ? `${question} [${defaultValue}]: ` : `${question}: `;

High

Trigger Reachable Persistence

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

dist/gateway/setup.jsView on unpkg · L7

7*/ L8: import { execSync } from 'child_process'; L9: import { randomBytes } from 'crypto'; ... L12: import * as path from 'path'; L13: const CUMULUS_DIR = process.env.CUMULUS_DIR || path.join(os.homedir(), '.cumulus'); L14: const CONFIG_PATH = path.join(CUMULUS_DIR, 'gateway.config.json'); ... L17: '.git', L18: 'package.json', L19: 'Cargo.toml', ... L70: const readline = await import('readline'); L71: const rl = readline.createInterface({ input: process.stdin, output: process.stdout }); L72: const prompt = defaultValue ? `${question} [${defaultValue}]: ` : `${question}: `;

Medium

Install Persistence

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

dist/gateway/setup.jsView on unpkg · L7

dist/lib/version-check.jsView file

179// ─── Perform update ────────────────────────────────────────── L180: /** Check if sudo is needed for global npm install */ L181: export async function needsSudo() { L182: const { execSync } = await import('child_process'); L183: try {

High

Runtime Package Install

Package source invokes a package manager install command at runtime.

dist/lib/version-check.jsView on unpkg · L179

Source & flagged code

7 flagged · loading source

dist/tui/hooks/useClaudeProcess.jsView file

3*/ L4: import { spawn } from 'child_process'; L5: import { useCallback, useRef } from 'react';

High

Child Process

Package source references child process execution.

dist/tui/hooks/useClaudeProcess.jsView on unpkg · L3

dist/lib/gateway.jsView file

Critical

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

dist/lib/gateway.jsView on unpkg

Findings

1 Critical4 High4 Medium7 Low

CriticalPrevious Version Dangerous Deltadist/lib/gateway.js

HighChild Processdist/tui/hooks/useClaudeProcess.js

HighShelldist/lib/gateway.js

HighTrigger Reachable Persistencedist/gateway/setup.js

HighRuntime Package Installdist/lib/version-check.js

MediumNetwork

MediumEnvironment Vars

MediumInstall Persistencedist/gateway/setup.js

MediumStructural Risk Force Deep Review

LowNon Install Lifecycle Scripts

LowScripts Present

LowWeak Cryptodist/gateway/server.js

LowFilesystem

LowHigh Entropy Strings

Affected versions and remediation

This report applies to @luckydraw/cumulus@0.31.56.

See all versions of @luckydraw/cumulus for other recorded verdicts.

Review the evidence and your use of @luckydraw/cumulus@0.31.56 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: 2026-08-02 08:10:34.029Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.