negotium@0.5.12
Install the Negotium multi-agent runtime and CLI with one package
AI Security Review
scanned 14d ago · by lpm-firewall-aiThe inspected postinstall behavior is package-aligned binary setup with digest verification. The agent-integration locations and scanner hints did not establish an active attack or a foreign agent configuration mutation.
Static reason
One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source
Trigger
npm runs the package postinstall hook.
Impact
No malicious effect was established from the reviewed source.
Mechanism
The hook invokes the browser and Bash runtime installers; inspected installer code pins release assets and SHA-256 digests.
AI rationale
The inspected postinstall behavior is package-aligned binary setup with digest verification. The agent-integration locations and scanner hints did not establish an active attack or a foreign agent configuration mutation.
Evidence
install-browser-rs.mjsinstall-bash-rs.mjs
Network endpoints1
github.com/maestrojeong/browser-rs-mcp/releases/download/
Decision evidence
public snapshotAI called this Clean at 73.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The postinstall hook runs two package-owned installers for browser and Bash runtime binaries.
- The installers use fixed release URLs and SHA-256 digests to verify the downloaded binaries.
- The inspected agent-integration locations are bundled runtime code; the reviewed evidence does not show an install-time mutation of a foreign agent configuration.
- The reviewed sources do not establish credential forwarding to an unrelated gateway or command-output exfiltration.
Evidence against
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetwork
HighEntropyStringsUrlStrings
Source & flagged code
11 flagged · loading sourcepackage.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 unpkgdist/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 · L9Findings
1 Critical7 High6 Medium4 Low
CriticalPrevious Version Dangerous Deltadist/browser-runtime.js
HighInstall Time Lifecycle Scriptspackage.json
HighChild Processdist/hosted-agent.js
HighSame File Env Network Executiondist/mcp-factories.js
HighCredential Redirect Persistencedist/mcp-factories.js
HighCommand Output Exfiltrationdist/mcp-factories.js
HighTrigger Reachable Command Output Exfiltrationdist/mcp-factories.js
HighSemantic Analysis Limiteddist/runtime-helpers.js#virtual:normalized:round1
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumDynamic Requiredist/hosted-agent.js
MediumNetwork
Affected versions and remediation
This report applies to negotium@0.5.12.
See all versions of negotium for other recorded verdicts.
- Review the evidence and your use of negotium@0.5.12 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: .
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