Malicious Code Vulnerability in @ks-cqc/h5-sig4 Package
Summary
MAL-2026-16524: Malicious code in @ks-cqc/h5-sig4 (npm). Affects @ks-cqc/h5-sig4 versions 2.99.99. No fix is published. How to fix ↓
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Background
The @ks-cqc/h5-sig4 package is an npm library designed for handling digital signatures in web applications. It provides functionalities that allow developers to integrate signature verification and management into their projects. However, this package has been identified as containing malicious code, which poses a significant risk to users and their applications.
Vulnerability Detail
The vulnerability in the @ks-cqc/h5-sig4 package stems from the inclusion of malicious code that can compromise the security of applications utilizing this library. This code may allow unauthorized access to sensitive data or enable other malicious activities within the affected systems. The origin of this vulnerability is linked to the package's version 2.99.99, which has been flagged by security researchers for its harmful behavior.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall @ks-cqc/h5-sig4If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
If immediate updating is not possible, consider removing the @ks-cqc/h5-sig4 package from your project until a fix is applied. You can do this by running the command: npm uninstall @ks-cqc/h5-sig4.
Conclusion
The @ks-cqc/h5-sig4 package has been compromised with malicious code, posing a serious threat to applications that utilize it. It is crucial for developers to update or remove this package to safeguard their applications. Utilizing tools like Vulert can help in monitoring and managing vulnerabilities effectively.
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FAQ
The malicious code can potentially allow unauthorized access to sensitive information or enable other harmful actions within the application.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. Visit Vulert Scanner to check your application without needing to sign up.
As a temporary measure, you should uninstall the @ks-cqc/h5-sig4 package from your project until a secure version is available.
The vulnerability was identified by security researchers who monitor malicious packages in the npm ecosystem, specifically through the efforts of ReversingLabs.
Regularly monitor your dependencies for vulnerabilities using tools like Vulert and keep your packages updated to their latest secure versions.
