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@nemus-cli/nemus@0.2.9: AI-agent control-surface risk | LPM Firewall

registry / @nemus-cli/nemus / 0.2.9

@nemus-cli/nemus@0.2.9

Nemus — a CLI for managing multi-repository workspaces. Create, sync, and operate across dozens of repos with a single command, and wire them up to your favorite coding agent.

AI Security Review

scanned 6d ago · by lpm-firewall-ai

LPM flags this version as an AI-agent control-surface risk. Npm installation can register an executable hook in global Claude configuration without prior integration setup or consent. This affects agent sessions beyond Nemus workspaces.

Static reason

One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review

Trigger

Npm postinstall outside CI, with a supported shell and an available Claude CLI.

Impact

Package code becomes automatically executable after Claude responses through a foreign agent's global control surface.

Mechanism

Postinstall invokes upgrade, which detects active agents and installs a new permission synchronization Stop hook in global Claude settings.

Policy narrative

The npm lifecycle invokes the integration upgrade command automatically. Although package comments describe updates for existing users, the executable path does not require an existing installation marker. Default agent detection can select Claude, and upgrade then creates a new global Stop hook without asking permission. The hook therefore becomes active across Claude sessions following package installation.

AI rationale

Source establishes unconsented postinstall mutation of a foreign agent's global executable configuration, meeting the explicit blocking policy. Availability checks and package-aligned functionality do not provide consent or restrict installation to previously configured users.

Evidence

package.jsonscripts/postinstall.jsdist/mcp/install.jsdist/utils/permission-sync.jsdist/utils/config.jsdist/utils/agent-config.js~/.claude/settings.json

Source & flagged code

16 flagged · loading source

package.jsonView file

•scripts.postinstall = node scripts/postinstall.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node scripts/postinstall.js

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

bin/workspace.jsView file

2L3: const path = require('path'); L4: const command = process.argv[2];

Medium

Dynamic Require

Package source references dynamic require/import behavior.

bin/workspace.jsView on unpkg · L2

src/utils/bug-report.tsView file

•matchType = normalized_sha256 matchedPackage = @nemus-cli/nemus@0.3.3 matchedPath = src/utils/bug-report.ts matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.3.3 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.

src/utils/bug-report.tsView on unpkg

11L12: import { execFileSync } from 'child_process'; L13: import * as os from 'os'; ... L22: */ L23: export const BUG_REPORT_REPO = process.env.NEMUS_BUG_REPORT_REPO || 'me-public/nemus'; L24: ... L58: L59: const home = os.homedir(); L60: if (home) { ... L132: try { L133: const raw = JSON.parse(fs.readFileSync(LAST_ERROR_FILE, 'utf-8')); L134: // Validate required fields so a malformed/old file can't crash the reporter.

Low

Weak Crypto

Package source references weak cryptographic algorithms.

src/utils/bug-report.tsView on unpkg · L11

uninstall.shView file

•path = uninstall.sh kind = build_helper sizeBytes = 4891 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

uninstall.shView on unpkg

dist/cli/ai-prompt.js#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 8

High

Semantic Analysis Limited

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

dist/cli/ai-prompt.js#virtual:normalized:round1View on unpkg

dist/utils/claude-integration.jsView file

•matchType = normalized_sha256 matchedPackage = @nemus-cli/nemus@0.3.3 matchedPath = dist/utils/claude-integration.js matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.3.3 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/utils/claude-integration.jsView on unpkg

dist/utils/bug-report.jsView file

•matchType = normalized_sha256 matchedPackage = @nemus-cli/nemus@0.3.3 matchedPath = dist/utils/bug-report.js matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.3.3 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/utils/bug-report.jsView on unpkg

scripts/postinstall.jsView file

•matchType = normalized_sha256 matchedPackage = @nemus-cli/nemus@0.3.3 matchedPath = scripts/postinstall.js matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.3.3 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.

scripts/postinstall.jsView on unpkg

dist/utils/agent-config.jsView file

•matchType = normalized_sha256 matchedPackage = @nemus-cli/nemus@0.3.3 matchedPath = dist/utils/agent-config.js matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.3.3 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/utils/agent-config.jsView on unpkg

dist/utils/config.jsView file

•matchType = normalized_sha256 matchedPackage = @nemus-cli/nemus@0.3.3 matchedPath = dist/utils/config.js matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.3.3 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/utils/config.jsView on unpkg

src/utils/agent-config.test.tsView file

•matchType = normalized_sha256 matchedPackage = @nemus-cli/nemus@0.3.3 matchedPath = src/utils/agent-config.test.ts matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.3.3 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.

src/utils/agent-config.test.tsView on unpkg

src/utils/claude-integration.tsView file

•matchType = normalized_sha256 matchedPackage = @nemus-cli/nemus@0.3.3 matchedPath = src/utils/claude-integration.ts matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.3.3 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.

src/utils/claude-integration.tsView on unpkg

src/utils/agent-config.tsView file

•matchType = normalized_sha256 matchedPackage = @nemus-cli/nemus@0.3.3 matchedPath = src/utils/agent-config.ts matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.3.3 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.

src/utils/agent-config.tsView on unpkg

src/utils/git-operations.test.tsView file

•matchType = normalized_sha256 matchedPackage = @nemus-cli/nemus@0.3.3 matchedPath = src/utils/git-operations.test.ts matchedIdentity = npm:QG5lbXVzLWNsaS9uZW11cw:0.3.3 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.

src/utils/git-operations.test.tsView on unpkg