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cli-jaw@2.17.3: Malicious npm security report (Block) | LPM Firewall

registry / cli-jaw / 2.17.3

cli-jaw@2.17.3

Personal AI assistant powered by Pi, Antigravity, AI-E, Claude, Claude E, Codex, Codex App, Cursor, Grok, Kiro, OpenCode, and Copilot — Web, Terminal, Telegram, and Discord interfaces with 107 built-in skills

AI Security Review

scanned 3h ago · by lpm-firewall-ai

Installing the package runs a postinstall routine that downloads and executes third-party installers and imports remotely cloned skills. These actions occur without an affirmative install-time prompt.

Static reason

High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review

Trigger

npm installation with lifecycle scripts enabled

Impact

Arbitrary code from mutable third-party endpoints can run with the installing user's privileges and populate the package's agent-skill home.

Mechanism

postinstall remote-script execution and remote skill acquisition

Attack narrative

On npm install, the package's guard imports and runs its postinstall routine. In normal mode, Claude installation is enabled unless the user supplies an opt-out variable; the routine downloads a script from claude.ai and executes it with bash or PowerShell. It also installs missing skill dependencies, including downloading and executing Astral's uv installer, and clones a remote skills repository into ~/.cli-jaw. These mutable remote payloads run or are installed without an affirmative user action.

Rationale

The package performs unconsented install-time remote payload execution and writes remotely acquired agent skills. This is a concrete supply-chain execution surface, not merely a user-invoked setup command.

Evidence

package.jsonscripts/postinstall-guard.cjsdist/bin/postinstall.jsdist/lib/mcp/skills-distribution.js~/.cli-jaw/skills~/.cli-jaw/skills_ref

Network endpoints5

Source & flagged code

20 flagged · loading source

package.jsonView file

•scripts.postinstall = node scripts/postinstall-guard.cjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

dist/bin/postinstall.jsView file

24import os from 'os'; L25: import { execFileSync } from 'child_process'; L26: import { ensureSharedHomeSkillsLinks, initMcpConfig, copyDefaultSkills, propagateSkillsToInstances, migrateAllJawHomes, loadUnifiedMcp, saveUnifiedMcp } from '../lib/mcp-sync.js';

High

Child Process

Package source references child process execution.

dist/bin/postinstall.jsView on unpkg · L24

180function persistWindowsUserPathDir(dir) { L181: const ps = process.env["SystemRoot"] ? path.join(process.env["SystemRoot"], 'System32', 'WindowsPowerShell', 'v1.0', 'powershell.exe') : 'powershell'; L182: const script = `

High

Shell

Package source references shell execution.

dist/bin/postinstall.jsView on unpkg · L180

5console.error(`[jaw:init] ❌ Node.js >= 22 required (current: ${process.version})`); L6: console.error(`[jaw:init] Install: https://nodejs.org or nvm install 22`); L7: process.exit(1); ... L24: import os from 'os'; L25: import { execFileSync } from 'child_process'; L26: import { ensureSharedHomeSkillsLinks, initMcpConfig, copyDefaultSkills, propagateSkillsToInstances, migrateAllJawHomes, loadUnifiedMcp, saveUnifiedMcp } from '../lib/mcp-sync.js'; ... L29: let execFileAdapter = execFileSync; L30: let toolPlatform = process.platform; L31: /** Test seam. Returns a restore function. Not for production use. */ ... L61: const JAW_HOME = (() => { L62: if (!process.env["CLI_JAW_HOME"]) L63: return path.join(os.homedir(), '.cli-jaw');

High

Sandbox Evasion Gated Capability

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

dist/bin/postinstall.jsView on unpkg · L5

•matchType = token_shingles matchedPackage = cli-jaw@2.4.4 matchedPath = dist/bin/postinstall.js matchedIdentity = npm:Y2xpLWphdw:2.4.4 similarity = 1.000 shingleOverlap = 48 summary = source token shingles overlapped finalized malicious source

High

Known Malware Source Similarity

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

dist/bin/postinstall.jsView on unpkg

dist/src/browser/adaptive-fetch/defuddle-extractor.jsView file

98// eslint-disable-next-line no-new-func -- vendored bundle injection on CSP-strict pages L99: new Function(src)(); L100: }, source);

Low

Eval

Package source references a known benign dynamic code generation pattern.

dist/src/browser/adaptive-fetch/defuddle-extractor.jsView on unpkg · L98

dist/src/agent/jwc-runtime.jsView file

31const spec = override && override.trim() ? override.trim() : DEFAULT_JWC_SDK_SPEC; L32: sdkPromise = import(spec).catch(err => { L33: sdkPromise = null;

Medium

Dynamic Require

Package source references dynamic require/import behavior.

dist/src/agent/jwc-runtime.jsView on unpkg · L31

dist/src/ide/diff.jsView file

7*/ L8: import { execFileSync, execFile } from 'node:child_process'; L9: import { writeFileSync, mkdtempSync, mkdirSync, statSync, realpathSync, rmSync, readFileSync } from 'node:fs'; ... L139: // Antigravity: 여러 env 시그널 확인 (VS Code 포크라서 VSCODE_* 도 공존) L140: if (process.env["ANTIGRAVITY_AGENT"] === '1') L141: return 'antigravity';

Low

Weak Crypto

Package source references weak cryptographic algorithms.

dist/src/ide/diff.jsView on unpkg · L7

dist/bin/commands/launchd.jsView file

9Trigger-reachable persistence chain: manifest.bin -> dist/bin/cli-jaw.js -> dist/bin/commands/launchd.js L9: */ L10: import { execSync } from 'node:child_process'; L11: import { existsSync, readFileSync, writeFileSync, unlinkSync, readdirSync } from 'node:fs'; ... L16: import { asRecord, errString } from '../_http-client.js'; L17: if (process.argv[2] === 'launchd' && !process.env["_CLI_JAW_SERVICE_DELEGATE"]) { L18: console.error(' ⚠️ jaw launchd is deprecated. Use jaw service instead (cross-platform).'); ... L42: const LABEL = `com.cli-jaw.${INSTANCE}`; L43: const PLIST_PATH = join(homedir(), 'Library', 'LaunchAgents', `${LABEL}.plist`); L44: const LOG_DIR = join(JAW_HOME, 'logs'); ... L74: try { L75: execSync(`launchctl print ${GUI_DOMAIN}/${LABEL}`, { stdio: 'pipe' }); L76: return tru

High

Trigger Reachable Persistence

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

dist/bin/commands/launchd.jsView on unpkg · L9

•matchType = normalized_sha256 matchedPackage = cli-jaw@2.4.4 matchedPath = dist/bin/commands/launchd.js matchedIdentity = npm:Y2xpLWphdw:2.4.4 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.

dist/bin/commands/launchd.jsView on unpkg

9*/ L10: import { execSync } from 'node:child_process'; L11: import { existsSync, readFileSync, writeFileSync, unlinkSync, readdirSync } from 'node:fs'; ... L16: import { asRecord, errString } from '../_http-client.js'; L17: if (process.argv[2] === 'launchd' && !process.env["_CLI_JAW_SERVICE_DELEGATE"]) { L18: console.error(' ⚠️ jaw launchd is deprecated. Use jaw service instead (cross-platform).'); ... L42: const LABEL = `com.cli-jaw.${INSTANCE}`; L43: const PLIST_PATH = join(homedir(), 'Library', 'LaunchAgents', `${LABEL}.plist`); L44: const LOG_DIR = join(JAW_HOME, 'logs'); ... L74: try { L75: execSync(`launchctl print ${GUI_DOMAIN}/${LABEL}`, { stdio: 'pipe' }); L76: return true;

dist/lib/quota-copilot.jsView file

7// L8: // Source: https://docs.github.com/copilot — official credential order L9: import { execFileSync } from 'child_process'; L10: import fs from 'fs'; ... L14: import { stripUndefined } from '../src/core/strip-undefined.js'; L15: const JAW_HOME = process.env["CLI_JAW_HOME"] L16: ? resolveHomePath(process.env["CLI_JAW_HOME"])

High

Same File Env Network Execution

A single source file combines environment access, network access, and code or shell execution; review context before blocking.

dist/lib/quota-copilot.jsView on unpkg · L7

dist/bin/commands/skill.jsView file

•Manifest-trigger-reachable source links an external AI-agent control path to a behavior-bearing write operation. import { readdirsync, readfilesync, writefilesync, existssync, mkdirsync, rmsync, cpsync } from 'node:fs'; import { join } from 'node:path'; import { homedir } from 'node:os'; import { execsync } from 'node:child_process'; import { jaw_home, skills_dir } from '../../src/core/config.js'; import { isdiscoverableskilldirname } from '../../lib/mcp/sk[redacted]'; import { resolveskillid, legacyskillidnotice } from '../../lib/mcp/sk[redacted]'; const codex_skills = join(homedir(), '.codex', 'skills'); const ref_dir = join(jaw_home, 'skills_ref'); const c = {

High

Trigger Reachable External Ai Agent Control Surface Mutation

Manifest-trigger-reachable source writes behavior-bearing configuration into a user or project AI-agent control surface.

dist/bin/commands/skill.jsView on unpkg

public/dist/assets/MilkdownWysiwygEditor-BkEzO5cz.jsView file

142contains invisible/control Unicode U+FEFF (zero width no-break space) `,this.pos),this.lineEndPos=e),e===-1?this.atEnd?this.buffer.substring(this.pos):null:(this.buffer[e-1]===`\r`&&--e,this.buffer.substring(this.pos,e))}hasChars(e){return this.pos+e<=this.buffer.length}setNext(e){return this.buffer=this.buff

Critical

Trojan Source Unicode

Source contains bidi control or invisible Unicode characters associated with Trojan Source attacks.

public/dist/assets/MilkdownWysiwygEditor-BkEzO5cz.jsView on unpkg · L142

dist/bin/commands/mcp.jsView file

11* Package detection: L12: * npm: @scope/name or name → npm i -g <pkg> L13: * pypi: name (with --pypi flag) → uv tool install <pkg> / pip install <pkg> ... L15: */ L16: import { execSync, execFileSync } from 'node:child_process'; L17: import { readFileSync, existsSync, unlinkSync } from 'node:fs';

High

Runtime Package Install

Package source invokes a package manager install command at runtime.

dist/bin/commands/mcp.jsView on unpkg · L11

scripts/check-deps-online.shView file

•path = scripts/check-deps-online.sh kind = build_helper sizeBytes = 912 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

scripts/check-deps-online.shView on unpkg

dist/src/browser/adaptive-fetch/vendor/defuddle.iife.min.jsView file

•stage = ast_semantic_analysis; reason = ast_trace_path_limit_exceeded; limitedFiles = 9

High

Semantic Analysis Limited

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

dist/src/browser/adaptive-fetch/vendor/defuddle.iife.min.jsView on unpkg

dist/scripts/fresh-install-smoke.jsView file

•matchType = normalized_sha256 matchedPackage = cli-jaw@2.4.4 matchedPath = dist/scripts/fresh-install-smoke.js matchedIdentity = npm:Y2xpLWphdw:2.4.4 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.

dist/scripts/fresh-install-smoke.jsView on unpkg

dist/bin/commands/chat.jsView file

•matchType = normalized_sha256 matchedPackage = cli-jaw@2.4.4 matchedPath = dist/bin/commands/chat.js matchedIdentity = npm:Y2xpLWphdw:2.4.4 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.

dist/bin/commands/chat.jsView on unpkg

dist/bin/commands/dashboard.jsView file

•matchType = normalized_sha256 matchedPackage = cli-jaw@2.4.4 matchedPath = dist/bin/commands/dashboard.js matchedIdentity = npm:Y2xpLWphdw:2.4.4 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.

dist/bin/commands/dashboard.jsView on unpkg