registry / Staged payload carrier / negotium / 0.15.1

negotium@0.15.1

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

AI Security Review

scanned 1mo ago · by lpm-firewall-ai

This is an automatic staged native-payload delivery path, but the inspected code includes fixed origins and checksum verification and does not establish credential theft, destructive behavior, or agent-control hijacking.

Static reason

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

Trigger

npm installation runs postinstall.

Impact

A consumer receives executable code outside the reviewed package archive.

Mechanism

Automatic download and installation of hash-pinned native executables.

AI rationale

Evidence

package.jsoninstall-browser-rs.mjsinstall-bash-rs.mjs

Network endpoints1

github.com

Decision evidence

public snapshot

AI called this Suspicious at 82.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

The postinstall hook automatically runs two downloaders.
Each downloader fetches a native executable, marks it executable, and stores it outside the project.
The downloaded bytes are pinned to hard-coded SHA-256 hashes, limiting remote substitution.

Evidence against

No self-dependency or nested lifecycle chain is declared.
No credential exfiltration or foreign AI-agent configuration mutation was confirmed.
The inspected runtime credential code uses local vault values for its intended provider calls.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

scanned 274 file(s), 6.21 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": "^0.3.261",

148 "@anthropic-ai/sdk": "^0.124.0",

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

150 "@openai/codex-sdk": "^0.153.4",

151 "diff": "^9.0.0",

152 "maestro-agent-sdk": "0.5.1",

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

154 "orchgraph": "0.2.4",

155 "pino": "^10.3.1",

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

157 "tsx": "^4.23.13",

158 "zod": "4.4.3"

159 },

160 "devDependencies": {

161 "@types/node": "^26.4.1",

162 "bun-types": "^1.4.2",

163 "typescript": "^5"

dist/chunk-p0011tm7.jsView file

Lines 3-43javascript

3var __defProp = Object.defineProperty;

4var __getOwnPropNames = Object.getOwnPropertyNames;

5var __hasOwnProp = Object.prototype.hasOwnProperty;

6var __toESM = (mod,

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

4077}); L4078: import { spawn as spawn3 } from "child_process"; L4079: function createCodexAppServerForker(host) { ... L4081: const child = host.spawnServer(); L4082: return await new Promise((resolve6, reject) => { L4083: let settled = false; L4084: let stdoutBuffer = ""; L4085: let stderr = ""; ... L4092: try { L4093: child.stdin.end(); L4094: 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 · L4077

dist/agent-helpers.jsView file

3313Trigger-reachable command-output exfiltration chain: manifest.exports -> dist/agent-helpers.js L3313: }); L3314: import { spawn as spawn3 } from "child_process"; L3315: function createCodexAppServerForker(host) { ... L3317: const child = host.spawnServer(); L3318: return await new Promise((resolve6, reject) => { L3319: let settled = false; L3320: let stdoutBuffer = ""; L3321: let stderr = ""; ... L3328: try { L3329: child.stdin.end(); L3330: 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 · L3313

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@0.14.4 matchedIdentity = npm:bmVnb3RpdW0:0.14.4 similarity = 0.775 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/chunk-p0011tm7.jsView file

23// ../../[redacted].ts L24: import { execFileSync } from "child_process"; L25: import { randomBytes } from "crypto";

High

Child Process

Package source references child process execution.

dist/chunk-p0011tm7.jsView on unpkg · L23

Findings

1 Critical7 High6 Medium4 Low

CriticalPrevious Version Dangerous Deltadist/browser-runtime.js

HighInstall Time Lifecycle Scriptspackage.json

HighChild Processdist/chunk-p0011tm7.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/chunk-p0011tm7.js

MediumNetwork

MediumEnvironment Vars

Affected versions and remediation

This report applies to negotium@0.15.1.

See all versions of negotium for other recorded verdicts.

Review the evidence and your use of negotium@0.15.1 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: 2026-09-12 08:05:18.296Z (UTC).

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