droid@0.245.0
Factory Droid CLI - AI-powered software engineering agent
AI Security Review
scanned 16d ago · by lpm-firewall-aiThe source confirms a conditional credential exposure path: a weak hostname substring check controls whether NPM_TOKEN is sent, and redirects are followed without destination validation. Because the path requires the fallback and a matching untrusted destination, the evidence supports a warning rather than a publish block.
Static reason
One or more suspicious static signals were detected.
Trigger
Package installation when the platform binary is unavailable from optional dependencies and NPM_TOKEN is set.
Impact
A crafted metadata URL or redirect could expose the npm token to an unrelated matching hostname.
Mechanism
The fallback requests a tarball URL from registry metadata; the request helper attaches NPM_TOKEN based on a hostname substring and follows redirects without validating their destinations.
AI rationale
The source confirms a conditional credential exposure path: a weak hostname substring check controls whether NPM_TOKEN is sent, and redirects are followed without destination validation. Because the path requires the fallback and a matching untrusted destination, the evidence supports a warning rather than a publish block.
Evidence
package.jsoninstall.js
Network endpoints1
registry.npmjs.org
Decision evidence
public snapshotAI called this Suspicious at 88.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- The postinstall hook runs install.js.
- When NPM_TOKEN is set, install.js adds it as a Bearer token if the request hostname contains npmjs.org.
- The fallback installer obtains a tarball URL from registry metadata and requests that URL.
- The request helper follows redirects by recursively requesting the supplied Location without validating its destination.
Evidence against
- The fallback download runs only when the platform binary is unavailable from optional dependencies.
- The initial packument request targets registry.npmjs.org, and the source does not establish that an untrusted tarball URL or redirect is normally returned.
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@0.245.0.
See all versions of droid for other recorded verdicts.
- Review the evidence and your use of droid@0.245.0 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: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.