Critical Malicious Code Vulnerability in ultraconvert Package

ultraconvert Updated 02 Oct 2025

Summary

14/07/2025
CRITICAL
No i
Critical
Not published

MAL-2025-5865: Malicious code in ultraconvert (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The ultraconvert package is an npm library designed for converting various data formats seamlessly. It is widely used in JavaScript applications for its ease of integration and functionality. However, this package has been identified to contain malicious code, which poses significant security risks to any system utilizing it. The vulnerability allows unauthorized access and control over the affected systems, leading to potential data breaches and system compromises.

Vulnerability Detail

The vulnerability originates from the inclusion of embedded malicious code within the ultraconvert package. This code can compromise any computer that has the package installed, allowing attackers to gain full control over the system. The ramifications are severe, as all secrets and keys stored on the compromised system should be considered at risk. Removing the package does not guarantee the elimination of all malicious software that may have been installed as a result of this vulnerability.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall ultraconvert

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

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Workaround

As a temporary workaround, avoid using the ultraconvert package in your projects until the vulnerability is resolved. If you need similar functionality, consider using alternative packages that do not have known vulnerabilities.

Conclusion

The ultraconvert package has been identified as containing malicious code, posing significant security risks to systems that utilize it. Immediate action is required to remove the package and secure any compromised systems. Users are encouraged to monitor for updates and consider alternative packages for their data conversion needs.

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FAQ

Ultraconvert is an npm library used for converting various data formats in JavaScript applications.

The vulnerability involves embedded malicious code that can compromise the security of any system using the package.

You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check if your application is affected without requiring any signup.

Immediately remove the ultraconvert package from your project and consider rotating any sensitive keys or secrets stored on the affected system.

Yes, consider using other data conversion libraries available on npm that do not have known vulnerabilities.

Sponsored Lume, the Habilume companion Habilume Habit tracker with a companion that grows with you Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent. App Store Google Play

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall ultraconvert

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

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