registry / @byteplus/ark-cli / 1.0.26
@byteplus/ark-cli@1.0.26
BytePlus Ark command-line interface
AI Security Review
scanned 1mo ago · by lpm-firewall-aiThis is a transparent but risky lifecycle bootstrapper for an opaque remote executable. It warrants a warning for first-party agent-extension lifecycle risk, not a block, because the inspected source lacks a concrete malicious action.
Static reason
One or more suspicious static signals were detected.
Trigger
npm installation, including postinstall execution
Impact
The opaque binary can act with the installing user's permissions and may modify local agent-related state during refresh.
Mechanism
download, verify, install, and execute a remote native binary
AI rationale
This is a transparent but risky lifecycle bootstrapper for an opaque remote executable. It warrants a warning for first-party agent-extension lifecycle risk, not a block, because the inspected source lacks a concrete malicious action.
Evidence
package.jsonmanifest.jsonscripts/postinstall.jsbin/arkcli-${platform}-${arch}bin/arkcli-${platform}-${arch}.download-${process.pid}bin/arkcli-${platform}-${arch}.backup~/.arkcli-bp
Network endpoints2
sf16-sg.tiktokcdn.comgithub.com/byteplus-sdk/ark-cli/releases/download/
Decision evidence
public snapshotAI called this Suspicious at 86.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- An npm postinstall hook runs automatically.
- The hook downloads a platform binary from package-controlled CDN or release URLs and verifies only a manifest-supplied hash.
- After installation, the hook executes the downloaded binary with a Skill-refresh command, leaving its actions opaque to source review.
Evidence against
- The downloader requires HTTPS, rejects URL credentials, caps downloads, and checks SHA-256.
- Package JavaScript only writes the package-local bin directory; no credential harvesting or exfiltration is present in inspected source.
- No self-dependency, eval, shell interpolation, or foreign project configuration write is present in the inspected JavaScript.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
7 flagged · loading sourcepackage.jsonView file
•scripts.postinstall = node scripts/postinstall.js
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg•scripts.postinstall = node scripts/postinstall.js
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
package.jsonView on unpkg15"scripts": {
"postinstall": "node scripts/postinstall.js"
},
Medium
Suspicious Lifecycle Evidence
An npm postinstall hook runs automatically.
package.jsonView on unpkg · L15scripts/postinstall.js#virtual:normalized:round1View file
Findings
2 High7 Medium2 Low
HighInstall Time Lifecycle Scriptspackage.json
HighSemantic Analysis Limitedscripts/postinstall.js#virtual:normalized:round1
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumNetwork
MediumEnvironment Vars
MediumSuspicious Lifecycle Evidencepackage.json
MediumAi Review Evidencemanifest.json
MediumAi Review Evidencescripts/postinstall.js
MediumAi Review Evidencescripts/postinstall.js
LowScripts Present
LowFilesystem
Affected versions and remediation
This report applies to @byteplus/ark-cli@1.0.26.
See all versions of @byteplus/ark-cli for other recorded verdicts.
- Review the evidence and your use of @byteplus/ark-cli@1.0.26 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.