droid@0.190.0
Factory Droid CLI - AI-powered software engineering agent
AI Security Review
scanned 3mo ago · by lpm-firewall-aiSource inspection found no concrete malicious behavior, but the install-time unverified remote native-binary fallback is a real staged-payload supply-chain risk. This warrants a warning rather than a block.
Static reason
One or more suspicious static signals were detected.
Trigger
npm installation when the platform optional dependency is unavailable
Impact
A compromised or substituted registry-delivered archive could execute as the installing user.
Mechanism
unverified fallback download and execution of a native platform binary
AI rationale
Source inspection found no concrete malicious behavior, but the install-time unverified remote native-binary fallback is a real staged-payload supply-chain risk. This warrants a warning rather than a block.
Evidence
package.jsoninstall.jsplatform.jsbin/droidbin/droid.backupbin/droid.exe
Network endpoints1
registry.npmjs.org/
Decision evidence
public snapshotAI called this Suspicious at 90.0% confidence as Dangerous Capability with low false-positive risk.
Evidence for warning
- package.json runs postinstall via install.js.
- install.js downloads a platform-native tarball fallback from registry.npmjs.org.
- Downloaded archive contents are written executable and invoked with --version during install.
- No checksum/signature verification is performed for the fetched tarball.
Evidence against
- Installer limits file replacement to its own bin/droid shim and backup.
- Network auth header is only added for npmjs.org requests.
- No credential harvesting, exfiltration, AI-agent config writes, or shell-profile writes were found.
- bin/droid only launches the selected bundled platform binary with user CLI arguments.
Behavioral surface
ChildProcessEnvironmentVarsFilesystemNetworkShell
HighEntropyStringsUrlStrings
NoLicense
Source & flagged code
8 flaggedpackage.jsonView file
•scripts.postinstall = node install.js
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg9scripts.postinstall = node install.js
Install-time code downloads an unverified remote native executable, stages it locally, activates an executable path, and exposes it to process execution.
L9: *
L10: * Based on esbuild's approach: https://github.com/evanw/esbuild/pull/1621
L11: * and Sentry's guide: https://sentry.engineering/blog/publishing-binaries-on-npm
L12: *
...
L19: const path = require('path');
L20: const https = require('https');
L21: const zlib = require('zlib');
...
L27: getBinaryName,
L28: getBinaryPath,
L29: detectAVX2Support,
...
L50:
L51: function validateBinaryVersion(binaryPath) {
High
Unverified Remote Native Payload Install
Install-time source downloads a native archive from a fixed external host without transport verification, extracts it, and installs an executable payload.
package.jsonView on unpkg · L9•scripts.postinstall = node install.js
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
Findings
6 High5 Medium5 Low
HighInstall Time Lifecycle Scriptspackage.json
HighChild Processinstall.js
HighShellinstall.js
HighSame File Env Network Executioninstall.js#virtual:normalized:round1
HighUnverified Remote Native Payload Installpackage.json
HighTrigger Reachable Persistenceinstall.js
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumNetwork
MediumEnvironment Vars
MediumInstall Persistenceinstall.js
MediumStructural Risk Force Deep Review
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
Affected versions and remediation
This report applies to droid@0.190.0.
See all versions of droid for other recorded verdicts.
- Review the evidence and your use of droid@0.190.0 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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