registry / @scarn/cli / 0.8.0
@scarn/cli@0.8.0
Scarn runs AI agents over your backlog, on your machines. This CLI links your repo, designs pipelines with an agent, and runs the workers that execute them.
AI Security Review
scanned 7d ago · by lpm-firewall-aiThe install-time network path is a fallback for a missing optional dependency and retrieves the package’s matching platform binary from the configured npm registry. The bundled CLI’s inspected GITHUB_TOKEN flow is scoped to GitHub resources, and the wrapper passes user arguments to the CLI binary.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review; source fingerprint signature matched known malicious package; routed for review
Trigger
Postinstall runs during installation; the platform binary runs when the user invokes the CLI.
Impact
The install recovery writes the missing CLI binary under dist. No unrelated credential transfer or other malicious effect was identified.
Mechanism
If the optional platform package is absent, postinstall fetches its metadata from the configured npm registry and extracts the binary. GitHub credentials are used for GitHub repository or tarball requests.
AI rationale
The install-time network path is a fallback for a missing optional dependency and retrieves the package’s matching platform binary from the configured npm registry. The bundled CLI’s inspected GITHUB_TOKEN flow is scoped to GitHub resources, and the wrapper passes user arguments to the CLI binary.
Evidence
dist/<platform-binary>
Network endpoints4
registry.npmjs.org/<platform-package>/<version> (default registry; configurable)<registry-provided tarball host>api.github.comcontainers.dev/static/devcontainer-control-manifest.json
Decision evidence
public snapshotAI called this Clean at 96.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The postinstall hook fetches the matching platform package only if its optional binary is missing, then extracts that binary.
- The CLI wrapper runs the selected platform binary with the user’s command-line arguments.
- The bundled devcontainer code uses GITHUB_TOKEN for GitHub repository or GitHub tarball requests, consistent with fetching those resources.
Evidence against
- The package defines a postinstall hook that can make a network request and write a binary.
- The bundled CLI reads GITHUB_TOKEN, though the inspected flow limits its use to GitHub requests.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetwork
HighEntropyStringsMinifiedPossibleObfuscationUrlStrings
NoLicense
Source & flagged code
11 flaggedpackage.jsonView file
•scripts.postinstall = node bin/postinstall.js
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg•scripts.postinstall = node bin/postinstall.js
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
package.jsonView on unpkgdist/devcontainer/dist/spec-node/devcontainers-cli.jsView file
6var hL=Object.create;var LI=Object.defineProperty;var fL=Object.getOwnPropertyDescriptor;var dL=Object.getOwnPropertyNames;var pL=Object.getPrototypeOf,DL=Object.prototype.hasOwnPr...
L7: `)};function sw(A){var e=/\.[^.]*$/.exec(A);return e?e.index+1:A.length}function gw(A,e,t){if(A.reduce)return A.reduce(e,t);for(var i=0,r=arguments.length>=3?t:A[i++];i<A.length;i+...
L8:
L9: `),x())}function x(k){if(k||l--,u++,c===u&&l===0&&r!==void 0)return r(B||null)}}});var by=O((kz,Ny)=>{"use strict";Ny.exports=function A(e){var t=arguments.length;if(typeof e=="fun...
L10: `).join(`
...
L12: `)}function x1(A){A?process.env.DEBUG=A:delete process.env.DEBUG}function J1(){return process.env.DEBUG}function K1(A){A.inspectOpts={};let e=Object.keys(it.inspectOpts);for(let t=...
L13: `).map(e=>e.trim()
Findings
1 Critical8 High5 Medium5 Low
CriticalCredential Exfiltrationdist/devcontainer/dist/spec-node/devcontainers-cli.js
HighInstall Time Lifecycle Scriptspackage.json
HighChild Processdist/devcontainer/dist/spec-node/devcontainers-cli.js
HighSame File Env Network Executiondist/devcontainer/dist/spec-node/devcontainers-cli.js
HighCommand Output Exfiltrationdist/devcontainer/dist/spec-node/devcontainers-cli.js
HighSemantic Analysis Limitedbin/postinstall.js#virtual:normalized:round1
HighKnown Malware Source Similaritydist/devcontainer/dist/spec-node/devcontainers-cli.js
HighKnown Malware Source Similaritybin/postinstall.js
HighKnown Malware Source Fingerprint Signaturedist/devcontainer/dist/spec-node/devcontainers-cli.js
Affected versions and remediation
This report applies to @scarn/cli@0.8.0.
See all versions of @scarn/cli for other recorded verdicts.
- Review the evidence and your use of @scarn/cli@0.8.0 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.