registry / claude-multiacc / 1.0.13

claude-multiacc@1.0.13

Multi-account addon for Claude Code and OpenAI Codex CLI: every claude / claude -p and every codex / codex exec runs under a randomly-picked subscription account with the most usage headroom. Mirrors to a deploy server. No API keys.

AI Security Review

scanned 15d ago · by lpm-firewall-ai

The automatic global-install hook performs package-owned CLI setup by changing PATH startup configuration, which warrants a warning under the lifecycle policy. The inspected test finding is a test harness, and no concrete attack behavior was established.

Static reason

One or more suspicious static signals were detected.

Trigger

Installing globally with npm on a supported platform, outside CI and without the skip flag.

Impact

The package’s Claude and Codex commands can take precedence in the user’s shell; no attack was identified in the inspected behavior.

Mechanism

The postinstall hook invokes `install.sh`, which adds PATH configuration for the package shims.

AI rationale

Evidence

install.shscripts/postinstall.mjs

Decision evidence

public snapshot

AI called this Suspicious at 89.0% confidence as Dangerous Capability with low false-positive risk.

Evidence for warning

`package.json` runs a postinstall hook.
For global installs, the hook runs `install.sh` automatically.
`install.sh` adds PATH blocks to shell startup files, enabling the package’s Claude and Codex shims.
The flagged test script creates fake CLI binaries and tests rejection of injected input; the inspected excerpts show test harness behavior.

Evidence against

The postinstall hook skips local installs, CI environments, and Windows.
The inspected test excerpts do not show a shipped executable payload or an attack.

Behavioral surface

Source

ChildProcessEnvironmentVarsFilesystem

Supply chain

HighEntropyStrings

ManifestNo manifest risk signals triggered.

scanned 2 file(s), 6.33 KB of source

Source & flagged code

7 flagged

package.jsonView file

Lines 32-60json

32 "gowalk"

33 ],

34 "author": {

35 "name": "Gowalk"

36 },

37 "license": "MIT",

38 "repository": {

39 "type": "git",

40 "url": "git+https://github.com/gowalk-public/claude-multiacc.git"

41 },

42 "homepage": "https://github.com/gowalk-public/claude-multiacc#readme",

43 "bugs": {

44 "url": "https://github.com/gowalk-public/claude-multiacc/issues"

45 },

46 "publishConfig": {

47 "access": "public"

48 },

49 "engines": {

50 "node": ">=18"

51 },

52 "scripts": {

53 "postinstall": "node scripts/postinstall.mjs",

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L53

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg · L53

54 "test": "bash tests/run-tests.sh"

55 },

56 "dependencies": {

57 "update-notifier": "^7.3.1"

Medium

Suspicious Lifecycle Evidence

`package.json` runs a postinstall hook.

package.jsonView on unpkg · L52

58 }

59}

install.shView file

•path = install.sh kind = build_helper sizeBytes = 14782 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

install.shView on unpkg

tests/run-tests.shView file

Lines 8-48text

8WORK="$(mktemp -d "${TMPDIR:-/tmp}/multiacc-test.XXXXXX")"

9trap 'rm -rf "$WORK"' EXIT

11PASS=0

12FAIL=0

13t_ok() { PASS=$((PASS+1)); printf 'ok %s\n' "$1"; }

14t_fail() { FAIL=$((FAIL+1)); printf 'FAIL %s%s\n' "$1" "${2:+ — $2}"; }

15check() { # check <name> <expected-substring> <actual>

16 case "$3" in

17 *"$2"*) t_ok "$1" ;;

18 *) t_fail "$1" "expected substring '$2', got: $(printf '%s' "$3" | head -c 200)" ;;

19 esac

scripts/postinstall.mjsView file

Lines 2-33javascript

2// Runs after `npm install`. On a GLOBAL install/update it wires the addon up by

3// running install.sh (idempotent), so `npm i -g claude-multiacc@latest` fully updates

4// the shim, CLI, and scheduled jobs with no extra step. Deliberately best-effort:

5// npm's own CI, sandboxes, and non-global/dev installs must never be broken by it, and

6// a failed install.sh must not fail `npm install` — it only prints how to finish by hand.

7import { spawnSync } from 'node:child_process';

8import { fileURLToPath } from

Source & flagged code

7 flagged · loading source

package.jsonView file

•scripts.postinstall = node scripts/postinstall.mjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•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

52"scripts": { "postinstall": "node scripts/postinstall.mjs", "test": "bash tests/run-tests.sh" }, "dependencies": { "update-notifier": "^7

Medium

Suspicious Lifecycle Evidence

`package.json` runs a postinstall hook.

package.jsonView on unpkg · L52

install.shView file

Findings

2 High7 Medium3 Low

HighInstall Time Lifecycle Scriptspackage.json

HighPayload In Excluded Dirtests/run-tests.sh

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumEnvironment Vars

MediumShips Build Helperinstall.sh

MediumStructural Risk Force Deep Review

MediumSuspicious Lifecycle Evidencepackage.json

MediumAi Review Evidencetests/run-tests.sh

MediumAi Review Evidencescripts/postinstall.mjs

LowScripts Present

LowFilesystem

LowHigh Entropy Strings

Affected versions and remediation

This report applies to claude-multiacc@1.0.13.

See all versions of claude-multiacc for other recorded verdicts.

Review the evidence and your use of claude-multiacc@1.0.13 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: 2026-10-08 16:17:14.342Z (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

Runtime surface

Behavioral surface

Source & flagged code