negotium@0.5.7

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

AI Security Review

scanned 2mo ago · by lpm-firewall-ai

The lifecycle download is an explicit package feature and verifies a pinned SHA-256 before writing either executable. Source inspection did not substantiate the scanner's claimed credential redirection, external exfiltration, or foreign-package overwrite.

Static reason

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

Trigger

npm postinstall

Impact

Installs browser-rs and bash-rs under the Negotium state directory.

Mechanism

verified binary bootstrap into package state

AI rationale

Evidence

package.jsoninstall-browser-rs.mjsinstall-bash-rs.mjsdist/mcp-factories.js~/.negotium/binaries/browser-rs/v0.1.23/browser-rs~/.negotium/binaries/bash-rs/v0.1.7/bash-rs

Network endpoints2

github.com/maestrojeong/browser-rs-mcp/releases/download/v0.1.23github.com/maestrojeong/bash-rs-mcp/releases/download/v0.1.7

Decision evidence

public snapshot

AI called this Clean at 86.0% confidence as Benign with medium false-positive risk.

Evidence for AI clean decision

postinstall downloads executable browser-rs and bash-rs assets to ~/.negotium.

Evidence against

Each downloaded asset is SHA-256 checked before installation.
MCP factory references use localhost endpoints; no fixed third-party credential gateway found.
Codex auth/config copies are made only into a temporary isolated directory for model-cache bootstrapping, then removed.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

scanned 256 file(s), 5.75 MB of source, external domains: 127.0.0.1, api.deepseek.com, github.com, www.w3.org

Source & flagged code

11 flagged

package.jsonView file

Lines 118-158json

118 ],

119 "engines": {

120 "bun": ">=1.2.15"

121 },

122 "repository": {

123 "type": "git",

124 "url": "git+https://github.com/maestrojeong/negotium.git",

125 "directory": "apps/negotium"

126 },

127 "homepage": "https://github.com/maestrojeong/negotium#readme",

128 "bugs": {

129 "url": "https://github.com/maestrojeong/negotium/issues"

130 },

131 "publishConfig": {

132 "access": "public"

133 },

134 "scripts": {

135 "build": "bun ../../scripts/build-negotium-package.ts",

136 "check": "bunx tsc --noEmit",

137 "lint": "biome check",

138 "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 · L138

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg · L138

139 "prepack": "bun run build"

140 },

141 "dependencies": {

142 "@anthropic-ai/claude-agent-sdk": "^0.3.220",

143 "@anthropic-ai/sdk": "^0.111.0",

144 "@modelcontextprotocol/sdk": "^1.30.0",

145 "@openai/codex-sdk": "0.147.0",

146 "diff": "^9.0.0",

147 "maestro-agent-sdk": "0.2.8",

148 "node-telegram-bot-api": "^1.1.2",

149 "orchgraph": "0.2.1",

150 "pino": "^10.3.1",

151 "pino-pretty": "^13.1.3",

152 "tsx": "^4.22.4",

153 "zod": "^4.3.6"

154 },

155 "devDependencies": {

156 "@types/node": "^20",

157 "bun-types": "^1.3.11",

158 "typescript": "^5"

dist/hosted-agent.jsView file

Lines 1-29javascript

1// @bun

2import {

3 __require,

4 __toESM,

5 canonicalMcpBridgeEnv,

6 revokeCanonicalMcpBridgeTurn

7} from "./chunk-s2gez3wg.js";

9// ../../packages/core/src/agents/claude-provider.ts

10import

dist/mcp-factories.jsView file

1095async function bootstrapCodexModelCache(codexHome, cachePath) { L1096: const child = spawn(process.execPath, [codexCliScriptPath(), "app-server", "--stdio"], { L1097: env: { ...process.env, CODEX_HOME: codexHome }, L1098: stdio: ["pipe", "pipe", "pipe"] L1099: }); L1100: await new Promise((resolve4, reject) => { L1101: 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/mcp-factories.jsView on unpkg · L1095

•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

•Manifest-reachable source resolves another installed package, overwrites its runtime code, and injects package-defined remote behavior. dist/mcp-factories.js: writeFileSync const candidate = resolve(dir, "node_modules", ".bin", name); writeFileSync(secretFile, `${envValue} writeFileSync(secretFile, `${secret} writeFileSync as writeFileSync3 writeFileSync3(fd, payload); import { existsSync as existsSync4, readFileSync as readFileSync5, writeFileSync as writeFileSync4 } from "fs"; copyFileSync,

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@0.4.9 matchedIdentity = npm:bmVnb3RpdW0:0.4.9 similarity = 0.858 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

11 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 Critical8 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/mcp-factories.js

HighCredential Redirect Persistencedist/mcp-factories.js

HighEntrypoint Foreign Package Code Overwritedist/mcp-factories.js

HighCommand Output Exfiltrationdist/mcp-factories.js

HighTrigger Reachable Command Output Exfiltrationdist/mcp-factories.js

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumDynamic Requiredist/hosted-agent.js

Medium

Affected versions and remediation

This report applies to negotium@0.5.7.

See all versions of negotium for other recorded verdicts.

Review the evidence and your use of negotium@0.5.7 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: 2026-08-21 07:39:04.870Z (UTC).

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