registry / negotium / 0.6.17

negotium@0.6.17

Install the Negotium multi-agent runtime and CLI with one package

AI Security Review

scanned 14d ago · by lpm-firewall-ai

Source inspection found a package-aligned postinstall that installs hash-verified helper binaries and no concrete malicious behavior. The scanner hints about agent integration point to ordinary path resolution, rollout handling, and localhost browser operations in the inspected excerpts.

Static reason

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

Trigger

npm installation triggers the postinstall hook; browser and shell helpers are installed unless their respective skip environment variable is set to 1.

Impact

The observed effect is installation of verified helper binaries for Negotium; no confirmed attack surface was established.

Mechanism

The helper installers select a platform-specific asset, download it from the package's GitHub release, verify its SHA-256, and place it in the Negotium state directory.

AI rationale

Evidence

~/.negotium/binaries/browser-rs/~/.negotium/binaries/bash-rs/

Network endpoints1

github.com

Decision evidence

public snapshot

AI called this Clean at 88.0% confidence as Benign with low false-positive risk.

Evidence for AI clean decision

package.json exposes package-owned CLI and library entrypoints.
The postinstall hook invokes two package-owned binary installers; each downloads from a fixed GitHub release and verifies the binary against a pinned SHA-256 before installation.
Flagged agent integration locations resolve Codex auth paths, format user turns, write Claude rollout data, or probe a localhost browser service; inspected excerpts show no foreign agent configuration mutation or credential forwarding.
The inspected source shows ordinary package functionality and no concrete attack behavior.

Evidence against

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

scanned 266 file(s), 5.98 MB of source, external domains: 127.0.0.1, api.deepseek.com, github.com, www.w3.org

Source & flagged code

10 flagged

package.jsonView file

•scripts.postinstall = node install-browser-rs.mjs && node install-bash-rs.mjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node install-browser-rs.mjs && node install-bash-rs.mjs

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

dist/hosted-agent.jsView file

9// ../../packages/core/src/agents/claude-provider.ts L10: import { spawn as spawn2 } from "child_process"; L11: import { existsSync as existsSync2, readFileSync as readFileSync3 } from "fs";

High

Child Process

Package source references child process execution.

dist/hosted-agent.jsView on unpkg · L9

196var TSX_BIN = resolveDependencyBin("tsx"); L197: var TSX_LOADER = createRequire(import.meta.url).resolve("tsx"); L198: var TSCONFIG_PATH = resolve(PROJECT_ROOT, "tsconfig.json");

Medium

Dynamic Require

Package source references dynamic require/import behavior.

dist/hosted-agent.jsView on unpkg · L196

dist/mcp-factories.jsView file

•Manifest-reachable source captures an API credential, sends it to a fixed unofficial gateway, and persists that redirection in agent or shell configuration. dist/mcp-factories.js: writeFileSync writeFileSync(secretFile, `${envValue} writeFileSync(secretFile, `${secret} return process.env.NEGOTIUM_CODEX_AUTH_FILE || join(process.env.CODEX_HOME || join(homedir(), ".codex"), "auth.json"); writeFileSync as writeFileSync3 writeFileSync3(fd, payload); import { existsSync as existsSync4, readFileSync as readFileSync5, writeFileSync as writeFileSync4 } from "fs"; const projectsDir = join3(homedir2(), ".claude", "projects", encodeClaudeCwd(opts.cwd));

High

Credential Redirect Persistence

Manifest-reachable source sends a prompted API credential to a fixed unofficial gateway and persists the redirection.

dist/mcp-factories.jsView on unpkg

dist/main.jsView file

3944}); L3945: import { spawn as spawn3 } from "child_process"; L3946: function createCodexAppServerForker(host) { ... L3948: const child = host.spawnServer(); L3949: return await new Promise((resolve6, reject) => { L3950: let settled = false; L3951: let stdoutBuffer = ""; L3952: let stderr = ""; ... L3959: try { L3960: child.stdin.end(); L3961: child.kill();

High

Command Output Exfiltration

Source combines command execution, command-output handling, and outbound requests; review data flow before blocking.

dist/main.jsView on unpkg · L3944

dist/agent-helpers.jsView file

3237Trigger-reachable command-output exfiltration chain: manifest.exports -> dist/agent-helpers.js L3237: }); L3238: import { spawn as spawn3 } from "child_process"; L3239: function createCodexAppServerForker(host) { ... L3241: const child = host.spawnServer(); L3242: return await new Promise((resolve6, reject) => { L3243: let settled = false; L3244: let stdoutBuffer = ""; L3245: let stderr = ""; ... L3252: try { L3253: child.stdin.end(); L3254: child.kill();

High

Trigger Reachable Command Output Exfiltration

A manifest entrypoint or package-local install chain reaches command-output exfiltration behavior.

dist/agent-helpers.jsView on unpkg · L3237

dist/runtime/scripts/faster-whisper-wrapper.pyView file

•path = dist/runtime/scripts/faster-whisper-wrapper.py kind = build_helper sizeBytes = 2704 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

dist/runtime/scripts/faster-whisper-wrapper.pyView on unpkg

dist/runtime-helpers.js#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 3

High

Semantic Analysis Limited

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

dist/runtime-helpers.js#virtual:normalized:round1View on unpkg

dist/browser-runtime.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = negotium@0.16.1 matchedIdentity = npm:bmVnb3RpdW0:0.16.1 similarity = 0.533 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/browser-runtime.jsView on unpkg

Source & flagged code

10 flagged · loading source

package.jsonView file

•scripts.postinstall = node install-browser-rs.mjs && node install-bash-rs.mjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node install-browser-rs.mjs && node install-bash-rs.mjs

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

dist/hosted-agent.jsView file

9// ../../packages/core/src/agents/claude-provider.ts L10: import { spawn as spawn2 } from "child_process"; L11: import { existsSync as existsSync2, readFileSync as readFileSync3 } from "fs";

High

Child Process

Package source references child process execution.

dist/hosted-agent.jsView on unpkg · L9

Findings

1 Critical7 High6 Medium4 Low

CriticalPrevious Version Dangerous Deltadist/browser-runtime.js

HighInstall Time Lifecycle Scriptspackage.json

HighChild Processdist/hosted-agent.js

HighShell

HighCredential Redirect Persistencedist/mcp-factories.js

HighCommand Output Exfiltrationdist/main.js

HighTrigger Reachable Command Output Exfiltrationdist/agent-helpers.js

HighSemantic Analysis Limiteddist/runtime-helpers.js#virtual:normalized:round1

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumDynamic Requiredist/hosted-agent.js

MediumNetwork

MediumEnvironment Vars

Affected versions and remediation

This report applies to negotium@0.6.17.

See all versions of negotium for other recorded verdicts.

Review the evidence and your use of negotium@0.6.17 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: 2026-10-09 08:53:33.495Z (UTC).

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