Critical Malicious Code Vulnerability in Tyrtle (npm)

tyrtle Updated 02 Oct 2025

Summary

10/07/2025
CRITICAL
No i
Critical
Not published

MAL-2025-5800: Malicious code in tyrtle (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

Tyrtle is an npm package designed for various functionalities within JavaScript applications. It is widely used for its ease of integration and utility features. However, it has been identified to contain malicious code that compromises the security of any system where it is installed. This vulnerability poses a significant risk to users, as it can lead to unauthorized access and control over affected systems.

Vulnerability Detail

The vulnerability originates from the presence of embedded malicious code within the Tyrtle package. This code can compromise any computer that has the package installed, leading to potential data breaches and unauthorized access to sensitive information. Users are advised to treat any system with this package as fully compromised, as the malicious code may allow external entities to gain full control over the system.

How To Fix

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

npm uninstall tyrtle

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

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Workaround

Currently, the only effective workaround is to uninstall the Tyrtle package completely. You can do this by running the following command in your terminal: 'npm uninstall tyrtle'. This will help mitigate the risk associated with the malicious code until a secure version is released.

Conclusion

The Tyrtle npm package has been identified to contain malicious code, posing a significant security risk to users. Immediate action is required to remove the package and secure any sensitive information. Monitoring tools like Vulert can assist in identifying vulnerabilities in your applications.

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FAQ

Tyrtle is an npm package used in JavaScript applications for various functionalities. However, it has been compromised with malicious code.

If you have the Tyrtle package installed, your system is likely affected. It is recommended to remove the package immediately.

Rotate all secrets and keys stored on your computer from a different, secure system to prevent unauthorized access.

As of now, there is no patch available. Users should uninstall the package until a secure version is released.

You can use Vulert, which monitors and alerts you in real-time for open-source vulnerabilities using just your package-lock.json file. You can also check if your application is affected by this vulnerability using the Vulert playground at Vulert Scanner without any signup.

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How To Fix

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

npm uninstall tyrtle

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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