registry / nebula-notebook / 0.2.51
nebula-notebook@0.2.51
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 1mo ago · by lpm-firewall-aiThe postinstall script does not perform its nested installation behavior when installed as a dependency. Inspected runtime behavior is consistent with a local notebook application, with no concrete malicious chain identified.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
The server starts when the user runs the command-line launcher; the update check runs after server startup unless disabled.
Impact
No confirmed credential harvesting, secret transmission, persistence, destructive action, or unconsented install-time mutation was found.
Mechanism
The launcher passes user arguments to the bundled server. Resource code invokes fixed GPU utilities, and the update checker requests the package's npm registry record.
AI rationale
The postinstall script does not perform its nested installation behavior when installed as a dependency. Inspected runtime behavior is consistent with a local notebook application, with no concrete malicious chain identified.
Evidence
package.jsonbin/nebula-notebook.jsscripts/postinstall.cjsnode-server/dist/resources/resource-service.jsnode-server/dist/update-check.jsdist/assets/index-BYLhtrxB.js
Network endpoints1
registry.npmjs.org/nebula-notebook/latest
Decision evidence
public snapshotAI called this Clean at 91.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The package defines a postinstall hook, but its installer exits when running from node_modules.
- The command-line launcher starts the bundled server only when the user invokes the package command.
- Resource collection runs fixed GPU diagnostic commands rather than constructed shell input.
- The only identified outbound request is a version check to the npm registry, with an environment-variable opt-out.
- The bundled frontend requires a user click before executing inline notebook-output scripts.
Evidence against
Behavioral surface
ChildProcessCryptoEnvironmentVarsEvalFilesystemNetworkShellWebSocket
HighEntropyStringsMinifiedPossibleObfuscationUrlStrings
Source & flagged code
9 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-D7GWSc_e.jsView file
826patternName = generic_password
severity = medium
line = 826
Medium
Secret Pattern
Package contains a possible secret pattern.
dist/assets/index-D7GWSc_e.jsView on unpkg · L826Findings
6 High5 Medium5 Low
HighInstall Time Lifecycle Scriptspackage.json
HighChild Processbin/nebula-notebook.js
HighShellnode-server/dist/resources/resource-service.js
HighCross File Remote Execution Contextbin/nebula-notebook.js
HighRuntime Package Installscripts/postinstall.cjs
HighSemantic Analysis Limiteddist/assets/index-BYLhtrxB.js
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumSecret Patterndist/assets/index-D7GWSc_e.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowScripts Present
LowEvaldist/assets/index-BYLhtrxB.js
Affected versions and remediation
This report applies to nebula-notebook@0.2.51.
See all versions of nebula-notebook for other recorded verdicts.
- Review the evidence and your use of nebula-notebook@0.2.51 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: .
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