registry / negotium / 0.2.26

negotium@0.2.26

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

AI Security Review

scanned 2mo ago · by lpm-firewall-ai

The install-time downloader is package-aligned, checksum-verifies fixed artifacts, and writes only its own state directory. Broad agent and shell functionality is activated through explicit runtime commands, with no concrete malicious chain found.

Static reason

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

Trigger

npm postinstall

Impact

Installs package-aligned optional runtime helpers; no demonstrated exfiltration or persistence beyond package state.

Mechanism

verified helper-binary installation

AI rationale

Evidence

package.jsoninstall-browser-rs.mjsinstall-bash-rs.mjsdist/main.js~/.negotium/binaries/browser-rs/v0.1.19/browser-rs~/.negotium/binaries/bash-rs/v0.1.5/bash-rs

Network endpoints2

github.com/maestrojeong/browser-rs-mcp/releases/download/v0.1.19github.com/maestrojeong/bash-rs-mcp/releases/download/v0.1.5

Decision evidence

public snapshot

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

Evidence for AI clean decision

package.json postinstall downloads two native helper binaries.

Evidence against

Installers verify fixed SHA-256 hashes before writing binaries.
Installers write only package-owned ~/.negotium state and do not execute downloaded binaries.
dist/main.js exposes agent/browser/shell capabilities through explicit CLI/runtime actions.
Codex and Claude credential paths are checked for authentication; no source sends them to a remote host.
No lifecycle code mutates foreign AI-agent configuration.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

scanned 251 file(s), 5.51 MB of source, external domains: 127.0.0.1, api.deepseek.com, github.com

Source & flagged code

9 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

192var TSX_BIN = resolveDependencyBin("tsx"); L193: var TSX_LOADER = createRequire(import.meta.url).resolve("tsx"); L194: var TSCONFIG_PATH = resolve(PROJECT_ROOT, "tsconfig.json");

Medium

Dynamic Require

Package source references dynamic require/import behavior.

dist/hosted-agent.jsView on unpkg · L192

dist/main.jsView file

1941async function bootstrapCodexModelCache(codexHome, cachePath) { L1942: const child = spawn(process.execPath, [codexCliScriptPath(), "app-server", "--stdio"], { L1943: env: { ...process.env, CODEX_HOME: codexHome }, L1944: stdio: ["pipe", "pipe", "pipe"] L1945: }); L1946: await new Promise((resolve4, reject) => { L1947: let settled = false;

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/main.jsView on unpkg · L1941

1941async function bootstrapCodexModelCache(codexHome, cachePath) { L1942: const child = spawn(process.execPath, [codexCliScriptPath(), "app-server", "--stdio"], { L1943: env: { ...process.env, CODEX_HOME: codexHome }, ... L1945: }); L1946: await new Promise((resolve4, reject) => { L1947: let settled = false; L1948: let stdoutBuffer = ""; L1949: let stderr = ""; ... L1956: try { L1957: child.stdin.end(); L1958: 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 · L1941

dist/agent-helpers.jsView file

3160Trigger-reachable command-output exfiltration chain: manifest.exports -> dist/agent-helpers.js L3160: // ../../packages/core/src/agents/codex-app-server.ts L3161: import { spawn as spawn3 } from "child_process"; L3162: function createCodexAppServerForker(host) { ... L3164: const child = host.spawnServer(); L3165: return await new Promise((resolve6, reject) => { L3166: let settled = false; L3167: let stdoutBuffer = ""; L3168: let stderr = ""; ... L3175: try { L3176: child.stdin.end(); L3177: 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 · L3160

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/browser-runtime.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = negotium@0.1.32 matchedIdentity = npm:bmVnb3RpdW0:0.1.32 similarity = 0.375 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

9 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 Critical6 High6 Medium4 Low

CriticalPrevious Version Dangerous Deltadist/browser-runtime.js

HighInstall Time Lifecycle Scriptspackage.json

HighChild Processdist/hosted-agent.js

HighShell

HighSame File Env Network Executiondist/main.js

HighCommand Output Exfiltrationdist/main.js

HighTrigger Reachable Command Output Exfiltrationdist/agent-helpers.js

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumDynamic Requiredist/hosted-agent.js

MediumNetwork

MediumEnvironment Vars

MediumShips Build Helperdist/runtime/scripts/faster-whisper-wrapper.py

Medium

Affected versions and remediation

This report applies to negotium@0.2.26.

See all versions of negotium for other recorded verdicts.

Review the evidence and your use of negotium@0.2.26 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: 2026-08-09 22:02:07.318Z (UTC).

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