Malicious Code Injection in teagood-yakuza55: A Threat to npm Users
Summary
MAL-2025-168014: Malicious code in teagood-yakuza55 (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
teagood-yakuza55 is a package within the npm ecosystem, often associated with the tea.xyz token reward campaign. This package is designed to automate the generation and publication of derivative packages, which can inflate developer reputation scores for token rewards. However, it has been identified as containing malicious code that compromises the integrity of the npm registry.
Vulnerability Detail
The vulnerability in teagood-yakuza55 originates from its malicious payload, which modifies the package.json file to remove private flags and alters version numbers. It generates random package names, primarily themed around Indonesian culture, and continuously republishes these variants to pollute the npm registry. This behavior can lead to significant security risks, including the potential for dependency confusion and the spread of malicious software.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall teagood-yakuza55If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, you can prevent the installation of this package by using npm's package-lock.json file to lock your dependencies. Ensure that you do not include teagood-yakuza55 in your package.json or package-lock.json files.
Conclusion
The discovery of malicious code in the teagood-yakuza55 package poses a significant threat to npm users. It is crucial to take immediate action by uninstalling the package and monitoring your project for any further vulnerabilities. Utilizing tools like Vulert can help maintain the security of your open-source dependencies.
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FAQ
teagood-yakuza55 is an npm package associated with a token reward campaign that has been identified as containing malicious code.
The malicious code modifies your package.json, removes private flags, and can lead to the proliferation of unwanted packages in your project.
You should uninstall the package immediately using 'npm uninstall teagood-yakuza55' and check your project for any other affected packages.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time using your package-lock.json file.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.
