Malicious Code Injection in equal_leopard_requirement Package
Summary
MAL-2025-94280: Malicious code in equal_leopard_requirement (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The equal_leopard_requirement package is part of the npm ecosystem, primarily used for managing dependencies in JavaScript applications. This package has been identified as part of a malicious campaign that floods the npm registry with harmful packages. Its key attributes include automatic publishing scripts that generate derivative packages with randomized names, aimed at inflating developer reputation scores for token rewards.
Vulnerability Detail
The vulnerability stems from the malicious code embedded within the equal_leopard_requirement package. This code modifies the package.json file by removing private flags, altering version numbers, and creating random package names. The malicious payload continuously republishes these variants, polluting the npm registry and potentially compromising the integrity of applications that depend on this package. The origin of this vulnerability is linked to a broader campaign targeting npm packages to exploit developer incentives.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall equal_leopard_requirementIf 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 equal_leopard_requirement package from your project until a secure version is released. Use the following command to uninstall the package: npm uninstall equal_leopard_requirement.
Conclusion
The equal_leopard_requirement package poses a significant risk due to its embedded malicious code, which can compromise application integrity. It is crucial to take immediate action by updating or removing the package and utilizing tools like Vulert for ongoing vulnerability monitoring.
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FAQ
It is an npm package that has been identified as part of a malicious campaign to flood the npm registry with harmful packages.
The vulnerability can compromise the integrity of your application by introducing malicious code that modifies your package.json and republishing harmful variants.
You should uninstall the equal_leopard_requirement package immediately and monitor for any updates or patches.
Yes, you can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities using just your package-lock.json file.
You can use the Vulert playground at Vulert Scanner to check if your application is affected without any signup.
