Malicious Code Injection in multiple_dog_z3n Package: A Threat to npm Users
Summary
MAL-2025-105997: Malicious code in multiple_dog_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The multiple_dog_z3n package is part of the npm ecosystem, often used for various development purposes. However, it has been identified as part of a malicious campaign that floods the npm registry with derivative packages. This package is designed to inflate developer reputation scores through automated scripts that publish numerous variants of itself, potentially leading to security risks for users who inadvertently install it.
Vulnerability Detail
The vulnerability in the multiple_dog_z3n package stems from its association with a malicious campaign that modifies the package.json file to remove private flags and change version numbers. This allows the package to continuously republish itself under randomized names, polluting the npm registry and potentially compromising the integrity of applications that rely on it. The malicious payload can lead to unauthorized access, data leakage, and a compromised development environment.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall multiple_dog_z3nIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary measure, you can avoid using the multiple_dog_z3n package and any of its derivatives. Additionally, consider using npm audit to identify and address vulnerabilities in your project dependencies.
Conclusion
The multiple_dog_z3n package poses a significant risk due to its malicious nature, which can compromise the security of applications using it. It is essential to remove this package and monitor your dependencies for vulnerabilities to maintain a secure development environment.
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FAQ
The multiple_dog_z3n package is an npm package that has been identified as part of a malicious campaign aimed at inflating developer reputation scores.
This vulnerability can lead to unauthorized changes in your package.json file, potentially compromising your application's security and integrity.
You should immediately remove the multiple_dog_z3n package from your project and check for any unauthorized changes in your package.json file.
You can use tools like Vulert, which monitors your package-lock.json file for open-source vulnerabilities in real-time without requiring code access.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.
