registry / @scarn/cli / 0.8.1
@scarn/cli@0.8.1
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 6d ago · by lpm-firewall-aiThe install hook’s network request is a fallback to retrieve the package’s matching binary from the npm registry, and it does not send host or credential data. The flagged bundle’s credential use is scoped to GitHub repository and container registry operations within the CLI’s devcontainer functionality.
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 checks for a missing platform binary; devcontainer behavior runs when the CLI invokes that tooling for a task.
Impact
No automatic collection or transmission of unrelated host, project, or credential data was identified in the inspected paths.
Mechanism
The hook fetches the matching package tarball and extracts its binary. The bundle uses GITHUB_TOKEN for GitHub repository requests and supports process execution for devcontainer tasks.
AI rationale
The install hook’s network request is a fallback to retrieve the package’s matching binary from the npm registry, and it does not send host or credential data. The flagged bundle’s credential use is scoped to GitHub repository and container registry operations within the CLI’s devcontainer functionality.
Evidence
dist/<platform-binary>dist/<platform-binary>.download-<pid>
Network endpoints4
registry.npmjs.orggithub.comapi.github.comghcr.io
Decision evidence
public snapshotAI called this Clean at 93.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The postinstall hook only attempts recovery when the matching platform binary is missing; it fetches that binary from the npm registry and writes it under dist/.
- The CLI is described as running devcontainer workers; its bundled devcontainer tooling uses GITHUB_TOKEN for GitHub repository requests.
- The wrapper passes the devcontainer bundle path to the CLI binary, consistent with that bundled tooling serving the package’s stated purpose.
Evidence against
- The package has a postinstall hook that may make a network request and write a binary during installation.
- The bundle can read GITHUB_TOKEN and execute child processes as part of devcontainer operations.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetwork
HighEntropyStringsMinifiedPossibleObfuscationUrlStrings
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@0.8.1.
See all versions of @scarn/cli for other recorded verdicts.
- Review the evidence and your use of @scarn/cli@0.8.1 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: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.