Critical Malicious Code Vulnerability in final-html Package
Summary
MAL-2025-20565: Malicious code in final-html (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The final-html package is an npm library designed to assist developers in generating HTML content dynamically. It is widely used for its simplicity and efficiency in rendering HTML from various data sources. However, this package has been identified to contain malicious code that poses significant security risks to applications utilizing it.
Vulnerability Detail
The vulnerability stems from the presence of malicious code within the final-html package, which was introduced in version 0. This code can potentially compromise the security of applications by allowing unauthorized access or manipulation of data. The ramifications of this vulnerability can include data breaches, unauthorized data manipulation, and exploitation of the affected systems.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall final-htmlIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary measure, you can remove the final-html package from your project until a secure version is available. Use the following command to uninstall it: npm uninstall final-html.
Conclusion
The final-html package has been identified to contain malicious code, posing serious security risks to applications. It is crucial to update to a patched version or remove the package to mitigate potential threats. Regular monitoring for vulnerabilities using tools like Vulert can help maintain application security.
See every vulnerability recorded for final-html →
FAQ
final-html is an npm package used for generating HTML content dynamically in web applications.
The malicious code was introduced in version 0 of the final-html package, compromising its integrity.
The risks include potential data breaches, unauthorized access, and manipulation of application data.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.
If immediate updates are not possible, consider removing the package temporarily as a workaround until a secure version is available.
