registry / Staged payload carrier / negotium / 0.6.7

negotium@0.6.7

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

AI Security Review

scanned 2mo ago · by lpm-firewall-ai

The scanner’s credential-redirection and overwrite claims were not confirmed in the inspected source. The confirmed install-time opaque binary bootstrap is nevertheless a material unresolved execution risk.

Static reason

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

Trigger

npm postinstall; later runtime use of background_bash

Impact

Opaque release binaries execute outside the inspected JavaScript source.

Mechanism

verified remote native-binary bootstrap and execution

AI rationale

Evidence

package.jsoninstall-browser-rs.mjsinstall-bash-rs.mjsdist/chunk-cxtngn3p.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 Suspicious at 88.0% confidence as Dangerous Capability with low false-positive risk.

Evidence for warning

postinstall runs two downloader scripts.
Install scripts fetch pinned native executables into ~/.negotium and mark them executable.
Runtime spawns the downloaded bash-rs binary.

Evidence against

Downloads use fixed GitHub release URLs and SHA-256 checks.
No source evidence of credential exfiltration, foreign package overwrite, or agent-config mutation.
Network calls inspected are package runtime/loopback or explicitly configured services.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

scanned 264 file(s), 5.86 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

Lines 123-163json

123 ],

124 "engines": {

125 "bun": ">=1.2.15"

126 },

127 "repository": {

128 "type": "git",

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

130 "directory": "apps/negotium"

131 },

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

133 "bugs": {

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

135 },

136 "publishConfig": {

137 "access": "public"

138 },

139 "scripts": {

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

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

142 "lint": "biome check",

143 "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 · L143

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg · L143

144 "prepack": "bun run build"

145 },

146 "dependencies": {

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

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

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

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

151 "diff": "^9.0.0",

152 "maestro-agent-sdk": "0.3.3",

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

154 "orchgraph": "0.2.1",

155 "pino": "^10.3.1",

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

157 "tsx": "^4.22.4",

158 "zod": "^4.3.6"

159 },

160 "devDependencies": {

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

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

163 "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

•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,

High

Entrypoint Foreign Package Code Overwrite

Manifest-reachable source overwrites another installed package with package-defined remote behavior.

dist/mcp-factories.jsView on unpkg

dist/main.jsView file

3910}); L3911: import { spawn as spawn3 } from "child_process"; L3912: function createCodexAppServerForker(host) { ... L3914: const child = host.spawnServer(); L3915: return await new Promise((resolve6, reject) => { L3916: let settled = false; L3917: let stdoutBuffer = ""; L3918: let stderr = ""; ... L3925: try { L3926: child.stdin.end(); L3927: 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 · L3910

dist/agent-helpers.jsView file

3216Trigger-reachable command-output exfiltration chain: manifest.exports -> dist/agent-helpers.js L3216: }); L3217: import { spawn as spawn3 } from "child_process"; L3218: function createCodexAppServerForker(host) { ... L3220: const child = host.spawnServer(); L3221: return await new Promise((resolve6, reject) => { L3222: let settled = false; L3223: let stdoutBuffer = ""; L3224: let stderr = ""; ... L3231: try { L3232: child.stdin.end(); L3233: 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 · L3216

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/chunk-cxtngn3p.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = negotium@0.6.1 matchedIdentity = npm:bmVnb3RpdW0:0.6.1 similarity = 0.867 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/chunk-cxtngn3p.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/chunk-cxtngn3p.js

HighInstall Time Lifecycle Scriptspackage.json

HighChild Processdist/hosted-agent.js

HighShell

HighCredential Redirect Persistencedist/mcp-factories.js

HighEntrypoint Foreign Package Code Overwritedist/mcp-factories.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

Medium

Affected versions and remediation

This report applies to negotium@0.6.7.

See all versions of negotium for other recorded verdicts.

Review the evidence and your use of negotium@0.6.7 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: 2026-08-24 03:11:32.008Z (UTC).

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