droid@0.239.1
Factory Droid CLI - AI-powered software engineering agent
AI Security Review
scanned 23d ago · by lpm-firewall-aiThe source shows a real but conditional token exposure risk because the fallback does not bind the destination host to the npm registry. The inspected code does not establish an actual disclosure or broader malicious behavior, so this warrants a warning rather than a block.
Static reason
One or more suspicious static signals were detected.
Trigger
Postinstall runs, the platform binary is unavailable, NPM_TOKEN is set, and the tarball hostname contains the checked text while belonging to another host.
Impact
Under those conditions, the Authorization token could be sent to a non-registry host.
Mechanism
The installer gets a tarball URL from registry metadata and makes a request to it; its token check uses a hostname substring instead of binding the token to the registry host.
AI rationale
The source shows a real but conditional token exposure risk because the fallback does not bind the destination host to the npm registry. The inspected code does not establish an actual disclosure or broader malicious behavior, so this warrants a warning rather than a block.
Evidence
install.jspackage.json
Network endpoints1
registry.npmjs.org
Decision evidence
public snapshotAI called this Suspicious at 78.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- The postinstall hook runs the installer, and platform-specific optional dependencies are declared at the same version.
- When a token is present, the installer adds it to requests for any hostname containing the npm registry’s domain text.
- The fallback takes the tarball URL from registry metadata and requests it, without checking that its host is the npm registry.
- The fallback runs when the platform binary is missing from optional dependencies.
Evidence against
- The fallback selects a platform package from a fixed mapping and requests the package’s matching version.
- The metadata lookup starts at the npm registry; the source does not establish that a non-registry host received a token.
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@0.239.1.
See all versions of droid for other recorded verdicts.
- Review the evidence and your use of droid@0.239.1 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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