droid@0.205.1
Factory Droid CLI - AI-powered software engineering agent
AI Security Review
scanned 2mo ago · by lpm-firewall-aiThe source establishes an unverified lifecycle download-and-execute path, so it should be warned on. It does not show concrete malicious intent or an attack against a foreign control surface.
Static reason
One or more suspicious static signals were detected.
Trigger
npm postinstall when the platform optional dependency is missing
Impact
A compromised registry response or redirected tarball could cause native code execution during installation.
Mechanism
downloads, installs, and executes a native fallback binary
AI rationale
The source establishes an unverified lifecycle download-and-execute path, so it should be warned on. It does not show concrete malicious intent or an attack against a foreign control surface.
Evidence
package.jsoninstall.jsplatform.jsbin/droidbin/
Network endpoints1
registry.npmjs.org/
Decision evidence
public snapshotAI called this Suspicious at 84.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- Its postinstall hook downloads a platform-native binary when the optional dependency is unavailable.
- The hook writes that downloaded binary as executable and invokes it for a version check.
- The downloaded tarball has no integrity or signature verification before extraction and execution.
Evidence against
- The fallback targets the npm registry and a declared same-vendor platform package at the package version.
- The npm token is only sent to hosts whose name includes npmjs.org.
- The hook only changes its own bin launcher and prints PATH advice without modifying shell profiles.
Behavioral surface
ChildProcessEnvironmentVarsFilesystemNetworkShell
HighEntropyStringsUrlStrings
NoLicense
Source & flagged code
6 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
5 High4 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
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
LowNo License
Affected versions and remediation
This report applies to droid@0.205.1.
See all versions of droid for other recorded verdicts.
- Review the evidence and your use of droid@0.205.1 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: .
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