# @cloudy-ts/esm-node

TypeScript and ESM node runtime powered by esbuild.

[![NPM version](https://img.shields.io/npm/v/@cloudy-ts/esm-node/latest.svg)](https://www.npmjs.com/package/@cloudy-ts/esm-node)
[![NPM downloads](https://img.shields.io/npm/dm/@cloudy-ts/esm-node.svg)](https://www.npmjs.com/package/@cloudy-ts/esm-node)
[![Build status](https://img.shields.io/github/workflow/status/skyrpex/cloudy-ts-esm-node/release)](https://www.npmjs.com/package/@cloudy-ts/esm-node)

## Installation

```sh
yarn add @cloudy-ts/esm-node
```

## Usage

```sh
yarn esm-node index.ts
```

Or manually:

```sh
node --loader @cloudy-ts/esm-node index.ts
```

## Motivation

The implementation is a fork of [antfu's esno](https://github.com/antfu/esno), but changes the [esbuild](https://github.com/evanw/esbuild) target to `es2022`.

The main reason to do so is that `esno` will generate helpers that break Pulumi's function serialization when spreading objects. Another reason is that `es2022` allows using top level await, which is supported by AWS Lambda with Node.js 14.


TypeScript and ESM node runtime powered by esbuild. 

Supply Chain Attack on Axios Pulls Malicious Dependency from npm

@cloudy-ts/esm-node

TypeScript and ESM node runtime powered by esbuild.

skyrpex

esm-node

An ambiguous license classifier was found.

What is an ambiguous license classifier?

Ambiguous license classifier

Source files are encoded using a non-standard text encoding.

What is bad text encoding?

Bad encoding

Package version is not a valid semantic version (semver).

What is bad semver?

Bad semantic version

Package has dependencies with an invalid semantic version. This could be a sign of beta, low quality, or unmaintained dependencies.

What is bad dependency semver?

Bad dependency semver

Source files contain bidirectional unicode control characters. This could indicate a Trojan source supply chain attack. See: trojansource.codes for more information.

What are bidirectional unicode control characters?

Contains Unicode bi-directional characters

This package has multiple bin scripts with the same name. This can cause non-deterministic behavior when installing or could be a sign of a supply chain attack.

What is bin script confusion?

Bin script confusion

This Chrome extension includes content scripts that execute JavaScript on specified websites.

What are Chrome extension content scripts?

Chrome content script

This Chrome extension requests host permissions to access specific websites or domains.

What are Chrome extension host permissions?

Chrome host permission

This Chrome extension requests permissions to access browser APIs, user data, or system features.

What are Chrome extension permissions?

Chrome permission

This Chrome extension requests wildcard host permissions that grant broad access to websites.

What are Chrome extension wildcard host permissions?

Chrome wildcard host permission

Semantic versions published out of chronological order.

What is a chronological version anomaly?

Chronological version anomaly

Project maintainer's SSH key has been compromised.

What is a compromised SSH key?

Compromised SSH key

What do I need to know about license files?

Restrictive license (copyleft)

Contains a Critical Common Vulnerability and Exposure (CVE).

What is a critical CVE?

Title

Critical CVE

Contains a high severity Common Vulnerability and Exposure (CVE).

What is a CVE?

High CVE

Uses debug, reflection and dynamic code execution features.

What is debug access?

Debug access

The maintainer of the package marked it as deprecated. This could indicate that a single version should not be used, or that the package is no longer maintained and any new vulnerabilities will not be fixed.

What is a deprecated package?

Deprecated by its maintainer

Contains a known deprecated SPDX license exception.

What is a deprecated SPDX exception?

Deprecated SPDX exception

License is deprecated which may have legal implications regarding the package's use.

What is a deprecated license?

Deprecated license

Package name is similar to other popular packages and may not be the package you want.

What is a typosquat?

Potential typosquat

Dynamic require can indicate the package is performing dangerous or unsafe dynamic code execution.

What is dynamic require?

Dynamic module loading

Package does not contain any code. It may be removed, is name squatting, or the result of a faulty package publish.

What is an empty package?

Empty package

Package accesses environment variables, which may be a sign of credential stuffing or data theft.

What is environment variable access?

Environment variable access

Something was found which is explicitly marked as unlicensed.

Explicitly unlicensed

Package optionally loads a dependency which is not specified within any of the package.json dependency fields. It may inadvertently be importing dependencies specified by other packages.

What are extraneous dependencies?

Name

Extraneous dependency

Contains a dependency which resolves to a file. This can obfuscate analysis and serves no useful purpose.

What are file dependencies?

File dependency

Accesses the file system, and could potentially read sensitive data.

What is filesystem access?

Filesystem access

Package has a dependency with a floating version range. This can cause issues if the dependency publishes a new major version.

What are wildcard dependencies?

Wildcard dependency

Generic ad-hoc alert, uploaded by user or produced by system diagnostics

Alert title

Generic alert

An input argument to this GitHub Action is being exported as an environment variable. If a user of this action passes untrusted input, it could be used in an insecure manner by subsequent workflow steps.

What are GitHub Actions taint flows?

Input argument exported

An input argument to this GitHub Action is being passed back as an output. If a user of this action passes untrusted input, it could be used in an insecure manner by consuming workflows.

Input argument as output

An input argument to this GitHub Action flows into a dangerous sink (such as shell command execution). This could allow a malicious user to inject commands or exploit the action.

Input argument leak

A GitHub context variable (such as issue title, PR description, or comment body) is being exported as an environment variable. These context values are user-controlled and could be exploited by subsequent workflow steps.

Context variable exported

A GitHub context variable (such as issue title, PR description, or comment body) is being passed back as an output. These context values are user-controlled and could be exploited by consuming workflows.

Context variable as output

A GitHub context variable (such as issue title, PR description, or comment body) flows into a dangerous sink (such as shell command execution). This is a critical security issue that could allow command injection or code execution attacks.

Context variable leak

An environment variable flows into a dangerous sink (such as shell command execution). If this environment variable comes from an untrusted source, it could be exploited to inject commands.

Environment variable leak

Contains a dependency which resolves to a remote git URL. Dependencies fetched from git URLs are not immutable and can be used to inject untrusted code or reduce the likelihood of a reproducible install.

What are git dependencies?

Git dependency

Contains a dependency which resolves to a GitHub URL. Dependencies fetched from GitHub specifiers are not immutable can be used to inject untrusted code or reduce the likelihood of a reproducible install.

What are GitHub dependencies?

GitHub dependency

AI has identified unusual behaviors that may pose a security risk.

What is an AI-detected potential code anomaly?

Potential code anomaly (AI signal)

AI has identified this package as a potential typosquat of a more popular package. This suggests that the package may be intentionally mimicking another package's name, description, or other metadata.

What is AI-detected potential typosquatting?

Potential typosquat (AI signal)

AI has identified this package as malware. This is a strong signal that the package may be malicious.

What is AI-detected potential malware?

Potentially malicious package (AI signal)

AI has determined that this package may contain potential security issues or vulnerabilities.

What are AI-detected potential security risks?

Potential security risk (AI signal)

Contains native code (e.g., compiled binaries or shared libraries). Including native code can obscure malicious behavior.

Why is native code a concern?

Native binaries present

Contains high entropy strings. This could be a sign of encrypted data, leaked secrets or obfuscated code.

What are high entropy strings?

High entropy strings

Contains unicode homoglyphs which can be used in supply chain confusion attacks.

What are unicode homoglyphs?

Unicode homoglyphs

Contains a dependency which resolves to a remote HTTP URL which could be used to inject untrusted code and reduce overall package reliability.

What are http dependencies?

HTTP dependency

Install scripts are run when the package is installed or built. Malicious packages often use scripts that run automatically to execute payloads or fetch additional code.

What is an install script?

Install-time scripts

Package has an invalid manifest file and can cause installation problems if you try to use it.

What is an invalid manifest file?

Invalid manifest file

Source files contain invisible characters. This could indicate source obfuscation or a supply chain attack.

What are invisible characters?

Invisible characters

What is a license change?

License changed

What is a license exception?

License exception

This package is not allowed per your license policy. Review the package's license to ensure compliance.

What is a license policy violation?

License Policy Violation

Contains long string literals, which may be a sign of obfuscated or packed code.

What's wrong with long strings?

Long strings

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

What is a major refactor?

Major refactor

This package version is identified as malware. It has been flagged either by Socket's AI scanner and confirmed by our threat research team, or is listed as malicious in security databases and other sources.

What is known malware?

Malicious package

This package has inconsistent metadata. This could be malicious or caused by an error when publishing the package.

What is manifest confusion?

Manifest confusion

Contains a medium severity Common Vulnerability and Exposure (CVE).

What is a medium CVE?

Medium CVE

Contains a low severity Common Vulnerability and Exposure (CVE).

What is a mild CVE?

Low CVE

This package contains minified code. This may be harmless in some cases where minified code is included in packaged libraries, however packages on npm should not minify code.

What's wrong with minified code?

Minified code present

A package's licensing information has fine-grained problems.

Misc. license issue

The package was published by an npm account that no longer exists.

What is a non-existent author?

Publisher account deleted

A required dependency is not declared in package.json and may prevent the package from working.

What is a missing dependency?

Missing dependency

Package does not have a license and consumption legal status is unknown.

What is a missing license?

Missing license

This package is missing its tarball. It could be removed from the npm registry or there may have been an error when publishing.

What is a missing tarball?

Missing tarball

What is a mixed license?

Mixed license

Package contains a modified version of an SPDX license exception. Please read carefully before using this code.

What is a modified license exception?

Modified license exception

Package contains a modified version of an SPDX license. Please read carefully before using this code.

What is a modified license?

Modified license

What is network access?

Network access

A new npm collaborator published a version of the package for the first time. New collaborators are usually benign additions to a project, but do indicate a change to the security surface area of a package.

@cloudy-ts/esm-node

@cloudy-ts/esm-node

Installation

Usage

Motivation

Related posts

Attackers Are Impersonating a Linux Foundation Leader in Slack to Target Open Source Developers

North Korea’s Contagious Interview Campaign Spreads Across 5 Ecosystems, Delivering Staged RAT Payloads