Malicious Code Injection in teagood-yakuza13: A Threat to npm Packages
Summary
MAL-2025-167969: Malicious code in teagood-yakuza13 (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The package 'teagood-yakuza13' is part of a series of npm packages associated with the tea.xyz token reward campaign. These packages are designed to inflate developer reputation scores by automatically generating and publishing derivative packages with randomized names. The malicious nature of this package lies in its ability to modify critical files and republish variants, thereby polluting the npm registry.
Vulnerability Detail
The vulnerability in 'teagood-yakuza13' originates from its malicious code that alters the package.json file by removing private flags and changing version numbers. It generates random package names, primarily themed around Indonesian culture, and continuously republishes these variants. This behavior not only compromises the integrity of the npm registry but also poses risks to developers who may unknowingly use these tainted packages, potentially leading to security breaches and loss of reputation.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall teagood-yakuza13If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, avoid using 'teagood-yakuza13' and any other packages associated with the tea.xyz campaign. Regularly audit your npm packages to ensure that no malicious packages are included in your project. You can also use tools like Vulert to monitor your dependencies for vulnerabilities.
Conclusion
The 'teagood-yakuza13' package poses a significant threat due to its malicious code that alters package files and repopulates the npm registry with tainted packages. It is crucial for developers to remove this package and monitor their dependencies to maintain the security and integrity of their projects.
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FAQ
'teagood-yakuza13' is an npm package linked to a malicious campaign that aims to inflate developer reputation scores through automated publishing.
The vulnerability can lead to the inclusion of malicious code in your project, potentially compromising security and integrity.
Uninstall the package immediately using 'npm uninstall teagood-yakuza13' and audit your project for any dependencies that may be affected.
You can use Vulert, which monitors your package-lock.json file to alert you in real-time for open-source vulnerabilities.
Yes, you can use the Vulert playground at Vulert Scanner to check for vulnerabilities in your application without any signup.
