Malicious Code Detected in wepack-cli: A Critical Security Alert
Summary
MAL-2025-39082: Malicious code in wepack-cli (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
wepack-cli is a package in the npm ecosystem designed to facilitate the bundling of JavaScript applications. It offers features such as module resolution, code splitting, and asset management. However, recent findings have revealed that this package contains malicious code, posing significant security risks to users who integrate it into their projects.
Vulnerability Detail
The vulnerability in wepack-cli stems from the inclusion of malicious code that can compromise the integrity of applications using this package. This code may lead to unauthorized access, data breaches, or even complete system takeover. The issue was introduced in version 0 and affects all subsequent versions, making it imperative for users to take immediate action.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall wepack-cliIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary measure, users can avoid using wepack-cli until the vulnerability is addressed. Alternatively, consider using a different package that offers similar functionality without the associated risks.
Conclusion
The discovery of malicious code in wepack-cli highlights the importance of vigilance in open-source software management. Users are urged to update their packages promptly and consider using tools like Vulert for ongoing monitoring of vulnerabilities.
See every vulnerability recorded for wepack-cli →
FAQ
wepack-cli is a command-line interface for the wepack module bundler, used to bundle JavaScript applications.
The malicious code was identified by security researchers from Amazon Inspector, who reported it as part of their ongoing monitoring of open-source packages.
Using wepack-cli with the malicious code can lead to security vulnerabilities, including unauthorized access to sensitive data and potential system compromises.
You can use Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without any signup.
If an immediate update is not possible, consider using alternative packages or temporarily disabling the functionality that relies on wepack-cli until a fix is implemented.
Related vulnerabilities
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