droid@0.242.1
Factory Droid CLI - AI-powered software engineering agent
AI Security Review
scanned 20d ago · by lpm-firewall-aiThe postinstall fallback passes a metadata-provided tarball URL to a helper that sends NPM_TOKEN based on a hostname substring check. This unresolved credential exposure risk warrants a warning, but the source does not establish an actual disclosure or malicious intent.
Static reason
One or more suspicious static signals were detected.
Trigger
Installation when the platform binary is missing and NPM_TOKEN is set.
Impact
An eligible non-registry host could receive the npm token; the source does not establish that such a host was used.
Mechanism
The installer follows the tarball URL from npm metadata, while its request helper attaches the token to any hostname containing npmjs.org.
AI rationale
The postinstall fallback passes a metadata-provided tarball URL to a helper that sends NPM_TOKEN based on a hostname substring check. This unresolved credential exposure risk warrants a warning, but the source does not establish an actual disclosure or malicious intent.
Evidence
install.js
Network endpoints1
registry.npmjs.org
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 install.js after installation and declares matching-version platform binaries.
- install.js gets a platform binary tarball URL from npm package metadata and passes that URL to the request helper.
- When NPM_TOKEN is set, the helper sends it as a bearer token to any hostname containing npmjs.org.
- The fallback download can therefore send the token to a metadata-selected lookalike hostname; the source does not restrict the tarball host.
Evidence against
Behavioral surface
ChildProcessEnvironmentVarsFilesystemNetworkShell
HighEntropyStringsUrlStrings
NoLicense
Source & flagged code
7 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 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
HighSemantic Analysis Limitedinstall.js#virtual:normalized:round1
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Low
Affected versions and remediation
This report applies to droid@0.242.1.
See all versions of droid for other recorded verdicts.
- Review the evidence and your use of droid@0.242.1 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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