registry / Destructive action / kempo / 4.5.8

kempo@4.5.8

A fullstack CMS framework for creating websites with user authentication

AI Security Review

scanned 2d ago · by lpm-firewall-ai

The CLI exposes a conditional data-loss risk because initialization removes a derived Docker volume without a confirmation guard. Since this occurs during an explicit project setup command and no separate attack behavior was established, downgrade to a warning.

Static reason

One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source

Trigger

A user runs kempo init and setup selects a new database container.

Impact

An existing matching volume may be deleted, losing its database data.

Mechanism

The CLI derives a volume name from the database name and runs docker volume rm without confirming that the volume is disposable.

AI rationale

Evidence

bin/cli.js

Decision evidence

public snapshot

AI called this Suspicious at 84.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

package.json exposes bin/cli.js as the kempo command; it declares no install lifecycle hook.
bin/cli.js runs setup only for the explicit init command and accepts -y/--yes.
During new database setup, bin/cli.js derives a Docker volume name from the database name and attempts to remove that volume before starting the database.
The volume removal has no confirmation guard, leaving a data-loss risk when an existing volume has the derived name.

Evidence against

The CLI behavior is tied to explicit project initialization and otherwise scaffolds files and starts the project database.
The inspected CLI excerpts show no credential transfer or package-controlled network destination.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStringsMinifiedUrlStrings

Source & flagged code

6 flagged

bin/cli.jsView file

Lines 1-25javascript

1#!/usr/bin/env node

3import { existsSync, cpSync, mkdirSync, writeFileSync, rmSync } from 'fs';

4import { fileURLToPath, pathToFileURL } from 'url';

5import { join, dirname, basename } from 'path';

6import { execSync, spawnSync } from 'child_process';

7import crypto from 'crypto';

High

Child Process

Package source references child process execution.

bin/cli.jsView on unpkg · L5

8import inquirer from 'inquirer';

10const args = process.argv.slice(2);

11const command = args[0];

12const useDefaults = args.includes('-y') || args.includes('--yes');

14if(command !== 'init'){

15 console.log('Usage: npx kempo init [-y|--yes]');

16 process.exit(1);

17}

19const __filename = fileURLToPath(import.meta.url);

20const __dirname = dirname(__filename);

21const moduleRoot = join(__dirname, '..');

22const projectDir = process.cwd();

23const projectName = basename(projectDir);

25/*

High

Entrypoint Build Divergence

Manifest entrypoint contains risky behavior absent from dist/build output.

bin/cli.jsView on unpkg · L5

Lines 391-458javascript

391

392writeFileSync(join(projectDir, '.env'),

393`# Database

394DATABASE_URL=${databaseUrl}

395

396# Email${emailServiceSkipped ? '\n# Configure your email service — update the values below' : ''}

397RESEND_API_KEY=${

•matchType = previous_version_dangerous_delta matchedPackage = kempo@4.2.22 matchedIdentity = npm:a2VtcG8:4.2.22 similarity = 0.583 summary = stored previous version shares package body but lacks this dangerous source file

Critical

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

bin/cli.jsView on unpkg

middleware/kempo.jsView file

Lines 83-123javascript

83 return { filePath: join(base, head), params: {} };

84 }

85 }

86 if(rest.length === 0){

87 for(const entry

Source & flagged code

6 flagged · loading source

bin/cli.jsView file

Critical

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

bin/cli.jsView on unpkg

5import { join, dirname, basename } from 'path'; L6: import { execSync, spawnSync } from 'child_process'; L7: import crypto from 'crypto';

High

Child Process

Package source references child process execution.

bin/cli.jsView on unpkg · L5

438stdio: 'inherit', L439: shell: true L440: });

High

Shell

Package source references shell execution.

bin/cli.jsView on unpkg · L438

5Manifest entrypoint (manifest.bin) carries capability families absent from dist/build output: environment+network, execution+network L5: import { join, dirname, basename } from 'path'; L6: import { execSync, spawnSync } from 'child_process'; L7: import crypto from 'crypto'; ... L19: const __filename = fileURLToPath(import.meta.url); L20: const __dirname = dirname(__filename); L21: const moduleRoot = join(__dirname, '..'); ... L25: /* L26: package.json L27: */ ... L65: const waitForPostgres = async (containerName, dbName = 'postgres') => { L66: process.stdout.write('Waiting for Postgres to be ready'); L67: for(let i = 0; i < 30; i++){

Findings

1 Critical4 High4 Medium4 Low

CriticalPrevious Version Dangerous Deltabin/cli.js

HighChild Processbin/cli.js

HighShellbin/cli.js

HighEntrypoint Build Divergencebin/cli.js

HighRuntime Package Installbin/cli.js

MediumDynamic Requiremiddleware/kempo.js

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

LowScripts Present

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

Affected versions and remediation

This report applies to kempo@4.5.8.

See all versions of kempo for other recorded verdicts.

Review the evidence and your use of kempo@4.5.8 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: 2026-10-21 04:05:20.377Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.