Malicious Code Injection in uinsu-lost-dulaku: A Threat to npm Ecosystem
Summary
MAL-2025-169952: Malicious code in uinsu-lost-dulaku (npm). Affected versions are not published. 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 package 'uinsu-lost-dulaku' is part of a series of npm packages associated with the tea.xyz token reward campaign. These packages are designed to manipulate the npm registry by automatically generating and publishing derivative packages with randomized names. This behavior aims to inflate developer reputation scores for rewards associated with the tea protocol. The malicious nature of this package poses a significant risk to developers and users relying on npm for package management.
Vulnerability Detail
The vulnerability in 'uinsu-lost-dulaku' originates from its malicious payload, which modifies the package.json file by removing private flags and altering version numbers. It generates random package names, often themed around Indonesian culture, and continuously republishes these variants to pollute the npm registry. This not only compromises the integrity of the npm ecosystem but also exposes developers to potential security risks and reputation damage.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall uinsu-lost-dulaku
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 avoid using the 'uinsu-lost-dulaku' package and monitor your project for any dependencies that may inadvertently include it. Regularly audit your package-lock.json file for any unauthorized changes.
Conclusion
The 'uinsu-lost-dulaku' package poses a significant threat to the npm ecosystem due to its malicious behavior. It is crucial for developers to be vigilant and remove any instances of this package from their projects. Utilizing tools like Vulert can aid in monitoring and managing vulnerabilities effectively.
See every vulnerability recorded for uinsu-lost-dulaku →
FAQ
It is an npm package associated with a token reward campaign that has been identified as malicious.
The vulnerability can lead to unauthorized modifications in your package.json file and can compromise the integrity of your project.
You should uninstall the package immediately using 'npm uninstall uinsu-lost-dulaku' and check for any unauthorized changes in your project.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in your software using just the package-lock.json file.
You can use the Vulert playground at Vulert Scanner to check for vulnerabilities without requiring any signup.