negotium@0.1.32
Install the Negotium multi-agent runtime and CLI with one package
AI Security Review
scanned 3mo ago · by lpm-firewall-aiNo concrete malicious chain was found, but automatic postinstall staging of a remote native payload is a meaningful unresolved supply-chain risk. The observed Claude/Codex session writes are runtime helpers, not lifecycle-triggered control-surface mutation.
Static reason
One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source
Trigger
npm installation (postinstall)
Impact
A compromised pinned release or hash update could stage executable code for later runtime use.
Mechanism
verified remote native-binary staging
AI rationale
No concrete malicious chain was found, but automatic postinstall staging of a remote native payload is a meaningful unresolved supply-chain risk. The observed Claude/Codex session writes are runtime helpers, not lifecycle-triggered control-surface mutation.
Evidence
package.jsoninstall-browser-rs.mjsdist/chunk-1p2n47qd.jsdist/agent-helpers.js~/.negotium/bin/browser-rs/v0.1.12/browser-rs
Network endpoints1
github.com/maestrojeong/browser-rs-mcp/releases/download/v0.1.12
Decision evidence
public snapshotAI called this Suspicious at 86.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- package.json runs postinstall
- install-browser-rs.mjs downloads a native executable
- Downloaded binary is saved executable under ~/.negotium
Evidence against
- Download URL and SHA-256 are hard-coded
- Installer verifies hash before rename
- No credential harvesting or foreign agent-config write found
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShell
HighEntropyStringsUrlStrings
Source & flagged code
4 flagged · loading sourcepackage.jsonView file
•scripts.postinstall = node install-browser-rs.mjs
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkgdist/cron.jsView file
352if (isBun) {
L353: ({ Database } = await import("bun:sqlite"));
L354: } else {
Medium
Dynamic Require
Package source references dynamic require/import behavior.
dist/cron.jsView on unpkg · L352dist/runtime/scripts/faster-whisper-wrapper.pyView file
•path = dist/runtime/scripts/faster-whisper-wrapper.py
kind = build_helper
sizeBytes = 2704
magicHex = [redacted]
Medium
Findings
2 High5 Medium4 Low
HighInstall Time Lifecycle Scriptspackage.json
HighPrevious Version Dangerous Deltadist/agent-helpers.js
MediumDynamic Requiredist/cron.js
MediumNetwork
MediumEnvironment Vars
MediumShips Build Helperdist/runtime/scripts/faster-whisper-wrapper.py
MediumStructural Risk Force Deep Review
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to negotium@0.1.32.
See all versions of negotium for other recorded verdicts.
- Review the evidence and your use of negotium@0.1.32 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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