Malicious Code Injection in Joko-Mangga85-Breki Package
Summary
MAL-2025-73737: Malicious code in joko-mangga85-breki (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 Joko-Mangga85-Breki package is part of the npm ecosystem, primarily used for JavaScript development. It is associated with the tea.xyz token reward campaign, which has been known to flood the npm registry with numerous packages. This package, like others in the campaign, is designed to inflate developer reputation scores through automated publishing scripts that generate derivative packages with randomized names.
Vulnerability Detail
The vulnerability in the Joko-Mangga85-Breki package stems from its malicious code that modifies the package.json file to remove private flags and alters version numbers. It generates random Indonesian-themed package names and continuously republishes variants, polluting the npm registry. This behavior can lead to security risks, including the potential for dependency confusion and the introduction of malicious code into projects that rely on this package.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall joko-mangga85-brekiIf 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 manually remove the Joko-Mangga85-Breki package from your project by running the following command: npm uninstall joko-mangga85-breki. Additionally, consider using a tool like Vulert to monitor your package-lock.json for vulnerabilities.
Conclusion
The Joko-Mangga85-Breki package contains malicious code that poses significant risks to projects using it. Immediate action is required to remove the package and monitor for vulnerabilities. Utilizing tools like Vulert can help maintain the security of your software dependencies.
See every vulnerability recorded for joko-mangga85-breki →
FAQ
It is an npm package associated with the tea.xyz token reward campaign, known for flooding the npm registry with malicious packages.
The vulnerability can lead to the introduction of malicious code into your project, potentially compromising security and functionality.
You should uninstall the Joko-Mangga85-Breki package immediately and monitor your project for any other vulnerabilities.
Yes, you can use the Vulert playground at Vulert Scanner to check for vulnerabilities in your application without any signup.
Regularly monitor your dependencies using tools like Vulert and keep your packages updated to the latest secure versions.
