registry / Malware / @luckydraw/cumulus / 1.0.21

@luckydraw/cumulus@1.0.21

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

AI Security Review

scanned 3d ago · by lpm-firewall-ai

The embedded instructions are a concrete attempt to override an AI agent’s existing controls and hide that override. This runtime control-hijacking behavior supports blocking publication.

Static reason

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

Trigger

A user invokes the gateway flow that constructs and sends its agent prompt.

Impact

This can steer the downstream agent’s behavior and suppress disclosure of the attempted override.

Mechanism

The prompt tells agents to ignore conflicting task-tracking instructions, avoid acknowledging the conflict, and follow a prescribed response format.

Attack narrative

The gateway source contains agent-directed text that identifies conflicting system reminders, directs the agent to follow an alternate task-tracking convention, and explicitly tells it not to acknowledge the conflict. The package exposes the gateway as a command, making this behavior reachable during gateway use.

AI rationale

The embedded instructions are a concrete attempt to override an AI agent’s existing controls and hide that override. This runtime control-hijacking behavior supports blocking publication.

Evidence

dist/lib/gateway.jspackage.json

Decision evidence

public snapshot

AI called this Malicious at 91.0% confidence as Malware with low false-positive risk.

Evidence for block

The gateway source embeds instructions that target agent task tracking and tell the agent to conceal conflicts with its existing instructions.
The embedded prompt directs multi-step agents to emit prescribed task blocks, giving the instructions a control-hijacking effect.
The package exposes a gateway command that can activate this runtime prompt behavior.

Evidence against

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetworkShellWebSocket

Supply chain

HighEntropyStringsMinifiedTelemetryUrlStrings

Manifest

NoLicense

scanned 103 file(s), 2.47 MB of source, external domains: 127.0.0.1, api.example.com, api.openai.com, api.search.brave.com, app.texitool.com, plastic.luckydraw.dev, registry.npmjs.org, router.huggingface.co, www.apple.com, www.w3.org

Oversized source lightweight scan

Source & flagged code

8 flagged

dist/tui/hooks/useClaudeProcess.jsView file

Lines 1-23javascript

1/**

2 * Hook for managing Claude subprocess and streaming.

3 */

4import { spawn } from 'child_process';

5import { useCallback, useRef } from 'react';

High

Child Process

Package source references child process execution.

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

6import { ContextBudget } from '../../lib/context-budget.js';

7import { StreamProcessor } from '../../lib/stream-processor.js';

8import { extractTextFromStreamLine } from '../utils/streamParser.js';

9export function useClaudeProcess(options) {

10 const { mcpConfigPath, contentStore, onText, onComplete, onError, onExternalize, onTTFT } = options;

11 const processRef = useRef(null);

12 const responseRef = useRef('');

13 const bufferRef = useRef('');

14 const completedRef = useRef(false);

15 const spawnTimeRef = useRef(0);

16 const ttftFiredRef = useRef(false);

17 const kill = useCallback(() => {

18 const partial = responseRef.current;

19 if (processRef.current) {

20 processRef.current.kill('SIGTERM');

21 processRef.current = null;

22 }

23 return partial;

dist/lib/gateway.jsView file

Lines 2054-2094javascript

2054 // under --permission-mode bypassPermissions it is a guaranteed no-op — so deny-by-default

2055 // has to be expressed as a denylist. Gated on the field being present so an unconstrained

2056 // thread never pays for the inventory probe (a subprocess spawn) at all.

2057 const effectiveDisallowedTools = mergedConfig.allowedTools

2058 ? compileDisallowedTools(mergedConfig.allowedTools, await

dist/gateway/server.jsView file

Lines 1-36javascript

1/**

2 * Gateway HTTP server — exposes the cumulus message pipeline as a REST API

3 * with SSE streaming. Channel adapters and remote clients connect here.

4 *

5 * Endpoints:

6 * POST /api/thread/:name/message — submit message, SSE stream response

7 * POST /api/thread/:name/sync — sync messages from local mode (store only, no Claude)

8 * GET /api/thread/:name/history — recent messages

9 * GET /api/thread/:name/status — thread info + adaptive state

10 * GET /api/threads — list all threads

dist/gateway/setup.jsView file

Lines 1-27javascript

1/**

2 * cumulus-gateway setup wizard and config management.

3 *

4 * Phase 1: `cumulus-gateway setup --project-root <path>` — instant non-interactive setup

5 * Phase 2: `cumulus-gateway setup` — interactive prompts with auto-detection

6 * Phase 4: `cumulus-gateway config set/get/list` — post-install config changes

7 */

8import { execSync } from 'child_process';

9import

dist/lib/version-check.jsView file

Lines 159-199javascript

159export function saveUpdateState(from, to) {

160 const state = {

161 previousVersion: from,

162 updatedAt: new Date().toISOString

dist/gateway/daemon.js#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 7

High

Semantic Analysis Limited

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

dist/gateway/daemon.js#virtual:normalized:round1View on unpkg

Source & flagged code

8 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

•matchType = previous_version_dangerous_delta matchedPackage = @luckydraw/cumulus@1.0.4 matchedIdentity = npm:QGx1Y2t5ZHJhdy9jdW11bHVz:1.0.4 similarity = 0.723 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

2074// Windows: spawn() can't directly exec .cmd/.bat shims (CVE-2024-27980). L2075: // Routing through cmd.exe is required for the npm-installed `claude.cmd`. L2076: const isWindowsShim = process.platform === 'win32' && /\.(cmd|bat|ps1)$/i.test(resolvedClaudePath);

Findings

1 Critical5 High4 Medium8 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

HighSemantic Analysis Limiteddist/gateway/daemon.js#virtual:normalized:round1

MediumNetwork

MediumEnvironment Vars

MediumInstall Persistencedist/gateway/setup.js

MediumStructural Risk Force Deep Review

LowNon Install Lifecycle Scripts

LowScripts Present

LowWeak Cryptodist/gateway/server.js

Affected versions and remediation

This report applies to @luckydraw/cumulus@1.0.21.

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

Avoid installing @luckydraw/cumulus@1.0.21. Remove it from direct dependencies and check your lockfile for transitive copies.
Choose an independently verified alternative or release. This report does not establish that other versions are safe.
If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.

Evidence last updated: 2026-10-20 10:47:10.649Z (UTC).

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

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Related packages

Other malware packages

Behavioral surface

Related packages

Other malware packages

Source & flagged code