Malicious Code Detected in bytel-oauth Package - Security Alert

bytel-oauth Updated 02 Oct 2025

Summary

14/08/2025
CRITICAL
No i
Critical
Not published

MAL-2025-16409: Malicious code in bytel-oauth (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The bytel-oauth package is an npm library designed to facilitate OAuth authentication in applications. It provides developers with tools to integrate OAuth flows seamlessly. However, recent findings have revealed that this package contains malicious code, posing significant security risks to applications that utilize it.

Vulnerability Detail

The vulnerability in the bytel-oauth package stems from the inclusion of malicious code that can compromise the security of applications using this library. This code may allow unauthorized access to sensitive data, lead to data breaches, or enable other malicious activities. The issue was introduced in version 0 and affects all subsequent versions.

How To Fix

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

npm uninstall bytel-oauth

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 →

Workaround

As a temporary workaround, consider removing the bytel-oauth package from your project until a secure version is available. You can do this by executing: 'npm uninstall bytel-oauth'. This will prevent any potential exploitation of the malicious code.

Conclusion

The discovery of malicious code in the bytel-oauth package highlights the importance of maintaining secure dependencies in software development. It is essential to update to the latest version or remove the package to protect your applications from potential threats.

See every vulnerability recorded for bytel-oauth →

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FAQ

The bytel-oauth package is used for implementing OAuth authentication in applications, allowing users to log in using third-party services.

You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Check your application's package-lock.json file with Vulert's playground at Vulert Scanner to see if you are affected.

The malicious code can lead to unauthorized access to sensitive data, data breaches, and other security incidents that can compromise your application.

Yes, there is a patched version available. It is recommended to update the package to the latest secure version using 'npm update bytel-oauth'.

If you cannot update the package right away, consider uninstalling it temporarily to mitigate the risk until a secure version is available.

How To Fix

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

npm uninstall bytel-oauth

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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