registry / Destructive action / kempo / 4.5.4

kempo@4.5.4

A fullstack CMS framework for creating websites with user authentication

AI Security Review

scanned 2d ago · by lpm-firewall-ai

The package has no install hook, and the risky operations are reachable through its explicit setup command. Automatic deletion of a matching database volume without a separate volume-specific confirmation remains a significant destructive risk, so warn rather than block.

Static reason

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

Trigger

A user runs `kempo init` and the CLI selects new-container mode.

Impact

Database contents in a matching existing volume can be permanently lost.

Mechanism

The CLI stops and removes the named container, removes the `${dbName}_postgres_data` volume, then starts Docker Compose.

AI rationale

Evidence

bin/cli.jsproject Docker volume `${dbName}_postgres_data`project server/db/migrations

Decision evidence

public snapshot

AI called this Suspicious at 88.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

The package exposes `bin/cli.js` as its `kempo` command, which accepts the explicit `init` action.
When initializing a new container, the CLI stops and removes the named Docker container and deletes the corresponding named volume before recreating it; existing database data can be lost.
The CLI also removes the project’s migration directory before running a forced schema push.

Evidence against

The manifest declares no install lifecycle hook; the destructive behavior is in the explicitly invoked setup command.
The CLI asks before deleting listed project files when reinitializing an existing project, but that confirmation does not cover the Docker volume deletion.

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 = 0.600 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 82-122javascript

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

83 }

84 }

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

86 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@4.5.4.

See all versions of kempo for other recorded verdicts.

Review the evidence and your use of kempo@4.5.4 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 04:05:13.915Z (UTC).

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