Critical Malicious Code Vulnerability in @legacy-ui/core Package
Summary
MAL-2026-1628: Malicious code in @legacy-ui/core (npm). Affects @legacy-ui/core versions 100.0.0. No fix is published. How to fix ↓
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Background
The @legacy-ui/core package is a component of the Legacy UI framework, primarily used for building user interfaces in web applications. It provides a set of reusable UI components that enhance the development process. However, this package has been identified to contain malicious code, posing significant security risks to applications that utilize it.
Vulnerability Detail
The vulnerability originates from the inclusion of malicious code within version 100.0.0 of the @legacy-ui/core package. This code can potentially compromise the integrity of applications, leading to unauthorized access, data breaches, or other malicious activities. The vulnerability has been documented in the Open Source Vulnerability database, highlighting its severity and the need for immediate remediation.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall @legacy-ui/coreIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, consider removing the @legacy-ui/core package from your project until a secure version is released. You can do this by running the command: npm uninstall @legacy-ui/core. Alternatively, you may explore using a different UI framework that does not have known vulnerabilities.
Conclusion
The @legacy-ui/core package has been identified with a critical vulnerability due to malicious code. It is crucial for developers to take immediate action by updating the package or implementing workarounds to safeguard their applications. Utilizing tools like Vulert can help in monitoring for such vulnerabilities in the future.
See every vulnerability recorded for @legacy-ui/core →
FAQ
The malicious code can execute unauthorized actions within the application, potentially leading to data theft or system compromise.
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Yes, it is recommended to update to the latest version of the @legacy-ui/core package to mitigate the risk.
Consider removing the package from your project or using an alternative UI library until a secure version is available.
Regularly monitor your dependencies using tools like Vulert, which can alert you to new vulnerabilities as they are discovered.
