Malicious Code Injection in reasonable_lark_0xrequest Package

reasonable_lark_0xrequest Updated 18 Nov 2025

Summary

11/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-107783: Malicious code in reasonable_lark_0xrequest (npm). Affected versions are not published. No fix is published. How to fix ↓

Free scan

Check if this vulnerability affects your application

Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.

Check my app free

No signup required · Results in about 60 seconds

Upload your dependency manifest or SBOM

Drag & drop your file here or

Java Javascript PHP Python Go Rust Ruby Dart C/C++ Elixir CycloneDX SPDX

Upload a supported dependency manifest or SBOM. No installation or source-code access required.

See supported files and SBOM formats
SBOM sbom.json · bom.json · bom.xml · *.spdx.json · *.cdx.json · *.cdx.xml
Java pom.xml · gradle.lockfile · buildscript-gradle.lockfile
Javascript package-lock.json · yarn.lock · pnpm-lock.yaml
PHP composer.lock
Python poetry.lock · requirements.txt · Pipfile.lock
Go go.mod
Rust Cargo.lock
Ruby Gemfile.lock
Dart pubspec.lock
C/C++ conan.lock
Elixir mix.lock
Enter your work email to receive your report link.

Verify your email to view the full report and start 30 days of continuous monitoring. No credit card required.

Sponsored Lume, the Habilume companion Habilume Habit tracker with a companion that grows with you Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent. App Store Google Play

Background

The reasonable_lark_0xrequest package is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. This package is designed to facilitate certain functionalities within the npm registry but has been compromised to include malicious code. The primary attributes of this package include its ability to publish and manage derivative packages, but it has been exploited to inflate developer reputation scores through automated scripts.

Vulnerability Detail

The vulnerability originates from the malicious payload embedded within the reasonable_lark_0xrequest package. This payload modifies the package.json file by removing private flags, altering version numbers, and generating random package names that are often themed around Indonesian culture. The scripts are designed to continuously republish these variants, leading to pollution of the npm registry and potential reputational damage for developers. The malicious nature of this package poses significant risks, including unauthorized access to sensitive data and the potential for further exploitation of systems relying on this package.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall reasonable_lark_0xrequest

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Workaround

As a temporary workaround, you can remove the reasonable_lark_0xrequest package from your project by executing the command: npm uninstall reasonable_lark_0xrequest. This will prevent any malicious code from executing while you seek a secure alternative.

Conclusion

The reasonable_lark_0xrequest package has been compromised with malicious code that modifies essential project files and repopulates the npm registry with harmful variants. It is crucial to take immediate action by updating or removing the package to safeguard your project and maintain the integrity of your development environment.

See every vulnerability recorded for reasonable_lark_0xrequest →

Share this vulnerability

FAQ

It is an npm package associated with the tea.xyz token reward campaign, designed to manage and publish derivative packages.

The vulnerability can lead to unauthorized modifications in your package.json file, potentially compromising your project's integrity and security.

If an update is not available, it is recommended to uninstall the package and look for a secure alternative to avoid risks.

You can use Vulert, which monitors your package-lock.json file to alert you in real-time for open-source vulnerabilities. You can check your application for vulnerabilities using the Vulert playground at Vulert Scanner without any signup.

Using this package can lead to pollution of the npm registry, unauthorized access to sensitive data, and damage to your developer reputation.

Sponsored Lume, the Habilume companion Habilume Habit tracker with a companion that grows with you Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent. App Store Google Play

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall reasonable_lark_0xrequest

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Subscribe to Vulert on Telegram
Daily digest of new CVEs, critical and high severity, affected packages and fixes — plus a weekly roundup.
Join the channel →
Help improve this record
Report an issue or send feedback