Malicious Code Vulnerability in test1hh235 Package
Summary
MAL-2026-16314: Malicious code in test1hh235 (npm). Affects test1hh235 versions 99.99.99. No fix is published. How to fix ↓
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.
No signup required · Results in about 60 seconds
Background
The test1hh235 package is an npm package that is designed for use in JavaScript applications. It is intended to provide specific functionalities to developers. However, this package has been identified as containing malicious code that can compromise the security of applications using it. The vulnerability arises from lifecycle hooks that execute code during installation, which can lead to unauthorized data exfiltration.
Vulnerability Detail
The vulnerability in the test1hh235 package originates from its preinstall and postinstall lifecycle hooks that execute a script (index.js) upon installation. This script makes an HTTP GET request to a hardcoded IP address (128.199.122.145), embedding the package name in the query string. This behavior indicates a reconnaissance probe for dependency confusion attacks, where the package's implausibly high version number (99.99.99) is designed to win resolution against internal packages. The automatic execution of this script during installation allows attackers to confirm the target environment, potentially leading to further exploitation.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall test1hh235If 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 workaround, you can avoid using the test1hh235 package altogether. If it is already installed, you can uninstall it using the command: npm uninstall test1hh235. Additionally, consider using tools like Vulert to monitor your dependencies for vulnerabilities. You can check if your application is affected by this vulnerability using the Vulert playground at https://vulert.com/scanner without requiring any signup.
Conclusion
The test1hh235 package has been identified as containing malicious code that poses a significant security risk. Users are advised to uninstall the package and monitor their dependencies for vulnerabilities. Utilizing tools like Vulert can help maintain the security of your applications.
See every vulnerability recorded for test1hh235 →
FAQ
The test1hh235 package is an npm package used in JavaScript applications, but it has been identified as containing malicious code.
The vulnerability executes a script during installation that sends data to an attacker-controlled server, potentially exposing sensitive information.
You should uninstall the test1hh235 package immediately and check for any other dependencies that may be affected.
Currently, there is no patched version available. It is advised to remove the package until a secure version is released.
You can use Vulert, which monitors your package-lock.json file to alert you in real-time for open-source vulnerabilities.
