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@codexed/codex@0.147.0-codexed.2: AI-agent control-surface risk | LPM Firewall

registry / @codexed/codex / 0.147.0-codexed.2

@codexed/codex@0.147.0-codexed.2

<p align="center"><strong>Codex CLI</strong> is a coding agent from OpenAI that runs locally on your computer. <p align="center"> <img src="https://github.com/openai/codex/blob/main/.github/codex-cli-splash.png" alt="Codex CLI splash" width="80%" /> </p

AI Security Review

scanned 1d ago · by lpm-firewall-ai

LPM flags this version as an AI-agent control-surface risk. Global installation silently replaces the shared `codex` launcher with this package's launcher. This can redirect subsequent Codex CLI use to the package's platform binary.

Static reason

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

Trigger

npm global installation, activating postinstall.

Impact

Hijacks a broad AI-agent CLI control surface after install.

Mechanism

Postinstall overwrite of global Codex command launchers.

Policy narrative

The package runs postinstall only for global installs, selects the npm prefix, removes any existing `codex` launcher, and installs a symlink or Windows command launchers that invoke its own entry point. Because `codex` is the shared OpenAI agent CLI command and the package's @codexed identity conflicts with its OpenAI-branded documentation, this is an unconsented replacement of a foreign/broad agent control surface.

Rationale

Source inspection confirms install-time replacement of the global `codex` command rather than ordinary package-local setup. No exfiltration was found, but the concrete CLI hijack meets the blocking policy.

Evidence

package.jsonscripts/postinstall.mjsREADME.mdbin/codex.js$npm_config_prefix/bin/codex$npm_config_prefix/codex.cmd$npm_config_prefix/codex.ps1

Decision evidence

Source & flagged code

8 flagged · loading source

package.jsonView file

•dependencies registry_only=@codexed/codex-linux-arm64,@codexed/codex-linux-x64,@codexed/codex-win32-x64

Critical

Manifest Confusion

Tarball package.json differs from the npm registry version manifest for scripts or dependency sets.

package.jsonView on unpkg

•scripts.postinstall = node scripts/postinstall.mjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

23"scripts": { "postinstall": "node scripts/postinstall.mjs" },

High

Suspicious Lifecycle Evidence

The manifest runs a postinstall script.

package.jsonView on unpkg · L23

•scripts.postinstall = node scripts/postinstall.mjs

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

scripts/postinstall.mjsView file

2L3: import { chmodSync, mkdirSync, renameSync, rmSync, symlinkSync, writeFileSync } from "node:fs"; L4: import os from "node:os"; ... L26: const launcherPath = path.join(binDir, "codex"); L27: const tmpPath = `${launcherPath}.codexed-tmp`; L28: L29: mkdirSync(binDir, { recursive: true }); L30: chmodSync(codexJs, 0o755); ... L42: L43: mkdirSync(launcherDir, { recursive: true }); L44: L45: writeFileSync(

Critical

Ai Agent Control Hijack

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

scripts/postinstall.mjsView on unpkg · L2

20function resolvePrefix() { return process.env.npm[redacted] || process.env.PREFIX || "/usr/local"; }

High

Ai Review Evidence

On global installs, the script resolves the npm prefix, defaulting to /usr/local.

scripts/postinstall.mjsView on unpkg · L20

bin/codex.jsView file

•matchType = normalized_sha256 matchedPackage = @codexed/codex@0.144.6-codexed.1 matchedPath = bin/codex.js matchedIdentity = npm:QGNvZGV4ZWQvY29kZXg:0.144.6-codexed.1 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.

bin/codex.jsView on unpkg

•matchType = malicious_source_fingerprint_signature signature = 8b9951f2d34b50c6 signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = @codexed/codex@0.144.6-codexed.1 matchedPath = bin/codex.js matchedIdentity = npm:QGNvZGV4ZWQvY29kZXg:0.144.6-codexed.1 similarity = 1.000 shingleOverlap = 2 summary = package final verdict is malicious

High

Known Malware Source Fingerprint Signature

Source fingerprint signature matches a known malicious package signature; route for source-aware review.

bin/codex.jsView on unpkg

Source & flagged code

8 flagged

package.jsonView file

Lines 3-32json

3 "version": "0.147.0-codexed.2",

4 "license": "Apache-2.0",

5 "bin": {

6 "codex": "bin/codex.js"

7 },

8 "type": "module",

9 "engines": {

10 "node": ">=16"

11 },

12 "files": [

13 "bin",

14 "scripts",

15 "README.md"

16 ],

17 "repository": {

18 "type": "git",

19 "url": "git+https://github.com/openai/codex.git",

20 "directory": "codex-cli"

21 },

22 "packageManager": "pnpm@10.33.0+sha512.10568bb4a6afb58c9eb3630da90cc9516417abebd3fabbe6739f0ae795728da1491e9db5a544c76ad8eb7570f5c4bb3d6c637b2cb41bfdcdb47fa823c8649319",

23 "scripts": {

Critical

Manifest Confusion

Tarball package.json differs from the npm registry version manifest for scripts or dependency sets.

package.jsonView on unpkg · L23

24 "postinstall": "node scripts/postinstall.mjs"

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L24

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg · L24

25 },

High

Suspicious Lifecycle Evidence

The manifest runs a postinstall script.

package.jsonView on unpkg · L23

26 "optionalDependencies": {

27 "@codexed/codex-linux-x64": "0.147.0-codexed.2",

28 "@codexed/codex-linux-arm64": "0.147.0-codexed.2",

29 "@codexed/codex-win32-x64": "0.147.0-codexed.2"

30 }

31}

32

scripts/postinstall.mjsView file

Lines 1-40javascript

1#!/usr/bin/env node

2

3import { chmodSync, mkdirSync, renameSync, rmSync, symlinkSync, writeFileSync } from "node:fs";

4import os from "node:os";

5import path from "node:path";

6import

bin/codex.jsView file

•matchType = normalized_sha256 matchedPackage = @codexed/codex@0.144.6-codexed.1 matchedPath = bin/codex.js matchedIdentity = npm:QGNvZGV4ZWQvY29kZXg:0.144.6-codexed.1 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.

bin/codex.jsView on unpkg

•matchType = malicious_source_fingerprint_signature signature = 8b9951f2d34b50c6 signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = @codexed/codex@0.144.6-codexed.1 matchedPath = bin/codex.js matchedIdentity = npm:QGNvZGV4ZWQvY29kZXg:0.144.6-codexed.1 similarity = 1.000 shingleOverlap = 2 summary = package final verdict is malicious

High

Known Malware Source Fingerprint Signature

Source fingerprint signature matches a known malicious package signature; route for source-aware review.

bin/codex.jsView on unpkg