AI Security Review
scanned 9d ago · by lpm-firewall-aiThe package is a binary-distribution wrapper for the Dagu CLI. Install-time network and file-write behavior is present but limited to fetching the matching @dagucloud platform tarball and installing its binary fallback.
Static reason
One or more suspicious static signals were detected.
Trigger
npm install postinstall when optional platform package is missing; user invoking dagu CLI
Impact
Installs and runs the Dagu CLI binary; no confirmed malicious behavior in wrapper source
Mechanism
platform binary resolver, fallback npm tarball download, and execFileSync wrapper
Rationale
Source inspection shows suspicious primitives are package-aligned for distributing and invoking a multi-platform CLI binary. No evidence of exfiltration, persistence, destructive actions, dependency confusion, or AI-agent control-surface mutation was found.
Evidence
package.jsoninstall.jsindex.jsbin/clilib/platform.jsREADME.mddagudagu.exe/proc/cpuinfo
Network endpoints3
registry.npmjs.org/@dagucloud/${platformSpecificPackageName}/-/${platformSpecificPackageName}-${PACKAGE_VERSION}.tgzgithub.com/dagucloud/dagugithub.com/dagucloud/dagu/issues
Decision evidence
public snapshotAI called this Clean at 86.0% confidence as Benign with low false-positive risk.
Evidence for block
- package.json runs postinstall: node ./install.js
- install.js downloads a platform tarball from registry.npmjs.org if optional dependency is absent
- install.js writes extracted package/bin/dagu or dagu.exe into the package directory
- index.js and bin/cli execute the resolved dagu binary via execFileSync
Evidence against
- Network endpoint is npm registry for declared @dagucloud platform packages at the same package version
- Optional dependencies enumerate expected platform-specific binary packages
- No credential/env harvesting, persistence, destructive behavior, or arbitrary shell command construction found
- CLI execution is user-invoked and passes argv to the packaged dagu binary
- lib/platform.js only maps platform/arch and reads /proc/cpuinfo for ARM variant detection
Behavioral surface
ChildProcessFilesystemNetwork
UrlStrings
CopyleftLicense
Source & flagged code
2 flagged · loading sourcepackage.jsonView file
•scripts.postinstall = node ./install.js
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg•scripts.postinstall = node ./install.js
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
package.jsonView on unpkgFindings
1 High2 Medium4 Low
HighInstall Time Lifecycle Scriptspackage.json
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumNetwork
LowScripts Present
LowFilesystem
LowUrl Strings
LowCopyleft License