# @cerbos/lite

[![npm](https://img.shields.io/npm/v/@cerbos/lite?style=flat-square)](https://www.npmjs.com/package/@cerbos/lite)

Client library for interacting with WebAssembly Cerbos policy bundles from server-side Node.js and browser-based applications.

## Prerequisites

- Node.js 18+

## Installation

```console
$ npm install @cerbos/lite
```

## Example usage

```typescript
import { Lite } from "@cerbos/lite";

const cerbos = new Lite(fetch("/policies.wasm"));

await cerbos.isAllowed({
  principal: {
    id: "user@example.com",
    roles: ["USER"],
    attr: { tier: "PREMIUM" },
  },
  resource: {
    kind: "document",
    id: "1",
    attr: { owner: "user@example.com" },
  },
  action: "view",
}); // => true
```

For more details, [see the `Lite` class documentation](../../docs/lite.lite.md).

## Further reading

- [API reference](../../docs/lite.md)
- [Cerbos documentation](https://docs.cerbos.dev)

## Get help

- [Join the Cerbos community on Slack](http://go.cerbos.io/slack)
- [Email us at help@cerbos.dev](mailto:help@cerbos.dev)


Client library for interacting with WebAssembly Cerbos policy bundles from server-side Node.js and browser-based applications

@cerbos/lite

alexolivier

ahaines

lite

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Bad semver

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Bad dependency semver

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Bidirectional unicode control characters

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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.

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Chronological version anomaly

Project maintainer's SSH key has been compromised.

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Compromised SSH key

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Copyleft License

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Title

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High CVE

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Debug access

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Deprecated

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Deprecated SPDX exception

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Deprecated license

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Possible typosquat attack

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Dynamic require

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Empty package

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Environment variable access

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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.

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Wildcard dependency

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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.

GitHub Actions: Input argument flows to dangerous sink

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.

GitHub Actions: GitHub context variable exported as environment variable

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.

GitHub Actions: GitHub context variable passed back as output

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AI-detected potential malware

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

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AI-detected potential security risk

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

Why is native code a concern?

Native code

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

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High entropy strings

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

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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. The majority of malware in npm is hidden in install scripts.

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Install scripts

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

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Invalid manifest file

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Invisible chars

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Long strings

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Missing dependency

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Missing license

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Mixed license

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Modified license exception

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

@cerbos/lite

@cerbos/lite

Prerequisites

Installation

Example usage

Further reading

Get help

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