Malicious Code Injection in interested_opossum_z3n Package
Summary
MAL-2025-104319: Malicious code in interested_opossum_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The interested_opossum_z3n 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 linked to a series of malicious packages flooding the npm registry. This package, like others in the campaign, is designed to inflate developer reputation scores through automated publishing of derivative packages.
Vulnerability Detail
The vulnerability in the interested_opossum_z3n package originates from its malicious design, which includes scripts that modify the package.json file to remove private flags, alter version numbers, and generate random package names. This behavior leads to the continuous republishing of variants, polluting the npm registry and potentially compromising the integrity of dependent projects. The malicious payload can also affect the reputation of developers by artificially inflating scores through these automated actions.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall interested_opossum_z3nIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a workaround, you can monitor your package dependencies using tools like Vulert. By utilizing Vulert, you can check your package-lock.json file for vulnerabilities without needing to install additional software. You can access the Vulert playground at https://vulert.com/scanner to see if your application is affected by this vulnerability.
Conclusion
The interested_opossum_z3n package poses a significant risk due to its malicious code designed to manipulate package metadata and inflate developer reputation scores. It is crucial to remove this package from your projects and utilize tools like Vulert to monitor for vulnerabilities effectively.
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FAQ
The interested_opossum_z3n package is an npm package associated with the tea.xyz token reward campaign, which has been identified as malicious.
This vulnerability can lead to the pollution of the npm registry and compromise the integrity of your project by introducing malicious code.
You should uninstall the interested_opossum_z3n package immediately and check your project for any other potentially malicious packages.
Yes, Vulert can monitor your package-lock.json file for vulnerabilities in real-time, allowing you to stay informed about potential risks.
Yes, you can use the Vulert playground at Vulert Scanner to check for vulnerabilities in your application without requiring an account.
