registry / nebula-notebook / 0.2.6
nebula-notebook@0.2.6
AI-native notebook computing environment — real Jupyter kernels, real filesystem, built to be driven by agents (Claude Code / Codex) via MCP
AI Security Review
scanned 3mo ago · by lpm-firewall-aiThe high-risk primitives are product-aligned, user-invoked notebook functionality. Direct inspection contradicts the scanner’s malicious conclusion because published dependency installs exit before the checkout-only postinstall actions.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
npm install or explicit nebula-notebook CLI launch
Impact
No unconsented mutation or exfiltration established.
Mechanism
checkout-only dependency setup and local notebook-server launch
AI rationale
The high-risk primitives are product-aligned, user-invoked notebook functionality. Direct inspection contradicts the scanner’s malicious conclusion because published dependency installs exit before the checkout-only postinstall actions.
Evidence
package.jsonscripts/postinstall.cjsbin/nebula-notebook.jsnode-server/dist/index.jsnode-server/dist/update-check.jsnode-server/dist/terminal/pty-manager.jsnode-server/dist/routes/autocomplete.js
Network endpoints1
registry.npmjs.org/nebula-notebook/latest
Decision evidence
public snapshotAI called this Clean at 96.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- package.json defines postinstall.
- scripts/postinstall.cjs can run npm install only for a repository checkout.
Evidence against
- scripts/postinstall.cjs exits immediately when installed under node_modules.
- bin/nebula-notebook.js only launches the packaged local server after an explicit CLI invocation.
- node-server/dist/update-check.js performs a notify-only npm registry version check; it never installs updates.
- Runtime process, filesystem, kernel, and terminal operations implement the declared notebook server and are reached after launching it.
- No source evidence of credential harvesting, exfiltration, remote payload execution, or AI-agent configuration mutation.
Behavioral surface
ChildProcessCryptoEnvironmentVarsEvalFilesystemNetworkShellWebSocket
HighEntropyStringsMinifiedObfuscated
Source & flagged code
7 flaggedpackage.jsonView file
•scripts.postinstall = node scripts/postinstall.cjs
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg•scripts.postinstall = node scripts/postinstall.cjs
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
package.jsonView on unpkgdist/assets/index-BRnOuVqD.jsView file
791patternName = generic_password
severity = medium
line = 791
matchedText = `),X=!0;...bar.
Medium
Secret Pattern
Package contains a possible secret pattern.
dist/assets/index-BRnOuVqD.jsView on unpkg · L791Findings
6 High5 Medium5 Low
HighInstall Time Lifecycle Scriptspackage.json
HighChild Processbin/nebula-notebook.js
HighShell
HighCross File Remote Execution Contextbin/nebula-notebook.js
HighRuntime Package Installscripts/postinstall.cjs
HighObfuscated
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumSecret Patterndist/assets/index-BRnOuVqD.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowScripts Present
LowEvaldist/assets/index-2nV_DRXf.js
LowFilesystem
LowHigh Entropy Strings
Affected versions and remediation
This report applies to nebula-notebook@0.2.6.
See all versions of nebula-notebook for other recorded verdicts.
- Review the evidence and your use of nebula-notebook@0.2.6 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.