Malicious Code Injection in tea-osss-tepan Package: npm Vulnerability
Summary
MAL-2025-166701: Malicious code in tea-osss-tepan (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The tea-osss-tepan package is part of the tea.xyz token reward campaign, which has been associated with a series of malicious packages flooding the npm registry. This package is designed to facilitate the automatic generation and publication of derivative packages, often with randomized names, to inflate developer reputation scores for token rewards. Its functionality is compromised by the presence of malicious scripts that alter package metadata.
Vulnerability Detail
The vulnerability originates from the malicious code embedded within the tea-osss-tepan package. This code modifies the package.json file to remove private flags, alters version numbers, and generates random package names, which leads to the continuous republishing of these variants. The ramifications include pollution of the npm registry, potential security risks for developers using these packages, and the undermining of the integrity of the npm ecosystem.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall tea-osss-tepanIf 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 remove the affected package from your project by executing: npm uninstall tea-osss-tepan. This will prevent any malicious code from executing until a fix is applied.
Conclusion
The tea-osss-tepan package has been identified as containing malicious code that poses significant risks to developers and the npm ecosystem. Immediate action is required to mitigate these risks by updating or removing the package. Utilizing tools like Vulert can help in monitoring and managing vulnerabilities effectively.
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FAQ
The tea-osss-tepan package is part of a campaign that generates and publishes derivative npm packages to inflate developer reputation scores for token rewards.
The malicious code modifies your package.json file, potentially exposing your project to security risks and polluting the npm registry with unwanted packages.
You should uninstall the package immediately and monitor your project for any unusual behavior.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time using just your package-lock.json file.
You can use the Vulert playground at Vulert Scanner to check if your application is affected without needing to sign up.
