droid@0.240.0
Factory Droid CLI - AI-powered software engineering agent
AI Security Review
scanned 23d ago · by lpm-firewall-aiThe install hook has a package-aligned binary setup purpose, but its token forwarding relies on an unrestricted hostname substring check and follows redirects. This is a conditional credential exposure risk, not proof of a deliberate theft operation.
Static reason
One or more suspicious static signals were detected.
Trigger
Installation when the platform binary is absent from optionalDependencies, with NPM_TOKEN set and a matching tarball URL or redirect destination.
Impact
A matching non-registry destination could receive the npm token. The inspected code does not establish that such a destination is used in normal operation.
Mechanism
The fallback requests a metadata-provided tarball URL and follows redirects; makeRequest adds the token based on a hostname substring check.
AI rationale
The install hook has a package-aligned binary setup purpose, but its token forwarding relies on an unrestricted hostname substring check and follows redirects. This is a conditional credential exposure risk, not proof of a deliberate theft operation.
Evidence
package.jsoninstall.js
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
- package.json activates install.js during postinstall and declares platform-specific optional dependencies.
- install.js attaches NPM_TOKEN when the request hostname contains the text npmjs.org.
- install.js follows redirect locations by calling makeRequest again without restricting the destination host.
- The fallback obtains the tarball URL from npm package metadata and requests that URL through makeRequest.
- The fallback runs only when the platform binary is missing from optionalDependencies.
Evidence against
- The fallback is for downloading this package's matching platform binary from npm when its optional dependency is unavailable.
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@0.240.0.
See all versions of droid for other recorded verdicts.
- Review the evidence and your use of droid@0.240.0 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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