Malicious Code Injection in paul-validator-catalyst Package
Summary
MAL-2025-106993: Malicious code in paul-validator-catalyst (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The paul-validator-catalyst package is an npm library that is likely used for validating data in JavaScript applications. However, it has been identified as part of a malicious campaign that floods the npm registry with harmful packages. This package, like others in the campaign, is designed to manipulate its own metadata and create numerous derivative packages, which can lead to security and reputation issues for developers.
Vulnerability Detail
The vulnerability in the paul-validator-catalyst package originates from its association with a malicious campaign that aims to inflate developer reputation scores through the creation of numerous derivative packages. The malicious code modifies the package.json file to remove private flags, alters version numbers, and generates random package names, leading to the pollution of the npm registry. This can result in developers inadvertently using compromised packages, exposing their applications to security risks.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall paul-validator-catalystIf 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 paul-validator-catalyst package altogether. If it is a dependency of another package, consider removing that package or replacing it with a trusted alternative.
Conclusion
The paul-validator-catalyst package has been identified as a vector for malicious code that can compromise the integrity of applications using it. Developers should take immediate action to remove this package and monitor their dependencies to ensure security. Utilizing tools like Vulert can help in identifying and mitigating such vulnerabilities in real-time.
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FAQ
The vulnerability involves malicious code that modifies package metadata and creates numerous derivative packages to inflate reputation scores.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check your application without any signup.
Remove the paul-validator-catalyst package from your project and update to a patched version if available.
Yes, using compromised packages can expose your application to various security risks, including data breaches and unauthorized access.
Regularly monitor your dependencies using tools like Vulert and keep your packages updated to their latest secure versions.
