Malicious Code Injection in cewe4 Package: npm Vulnerability Summary
Summary
MAL-2025-181486: Malicious code in cewe4 (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The cewe4 package is part of the npm ecosystem, primarily used for JavaScript development. It is often utilized in various applications for managing dependencies and enhancing functionality. However, this package has been identified as part of a malicious campaign that exploits npm's publishing capabilities, leading to significant security risks for developers and users alike.
Vulnerability Detail
The vulnerability in the cewe4 package stems from its association with the tea.xyz token reward campaign, which has been flooding the npm registry with malicious packages. These packages contain scripts designed to automatically generate and publish derivative packages with randomized names, effectively inflating developer reputation scores for token rewards. The malicious payload modifies the package.json file by removing private flags, altering version numbers, and continuously republishing variants, which pollutes the npm registry and poses a risk of dependency confusion and supply chain attacks.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall cewe4If 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 avoid using the cewe4 package and look for alternative packages that provide similar functionality without the associated risks. Always verify the integrity and reputation of packages before including them in your project.
Conclusion
The cewe4 package poses a significant security risk due to its malicious code injection vulnerabilities. It is crucial for developers to remove this package from their projects and monitor their dependencies for any potential threats. Utilizing tools like Vulert can help maintain the security of your applications.
See every vulnerability recorded for cewe4 →
FAQ
The cewe4 package is an npm package used in JavaScript development, but it has been identified as part of a malicious campaign.
The vulnerability can lead to dependency confusion, supply chain attacks, and the potential for malicious code execution within your application.
You should uninstall the cewe4 package immediately and replace it with a trusted alternative.
You can use tools like Vulert, which monitors your package-lock.json 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.
