Malicious Code Detected in zis-common-lib: A Critical npm Vulnerability
Summary
MAL-2026-320: Malicious code in zis-common-lib (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The package zis-common-lib is a JavaScript library commonly used in Node.js applications. It provides various utility functions that developers leverage to enhance their applications. However, recent findings have revealed that this package contains malicious code, posing significant security risks to any application that utilizes it.
Vulnerability Detail
The vulnerability stems from the inclusion of malicious code within the zis-common-lib package. This code can potentially compromise the integrity of applications that depend on it, leading to unauthorized access, data breaches, or other malicious activities. The issue was identified through an analysis by Amazon Inspector, which flagged the package as containing harmful elements.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall zis-common-libIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
If an immediate update is not feasible, consider temporarily removing the package from your project until a secure version is released. This can be done by executing: npm uninstall zis-common-lib.
Conclusion
The zis-common-lib package has been flagged for containing malicious code, posing a significant risk to applications that utilize it. It is essential to update or remove the package to mitigate potential security threats. Regular monitoring of dependencies using tools like Vulert can help maintain application security.
See every vulnerability recorded for zis-common-lib →
FAQ
zis-common-lib is a JavaScript library used in Node.js applications for various utility functions.
The malicious code was identified by Amazon Inspector during a security analysis of npm packages.
Using zis-common-lib with the malicious code can lead to unauthorized access, data breaches, and other security threats.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time using just your package-lock.json file.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected without needing to sign up.
