Critical Malicious Code Vulnerability in buffer-xov Package

buffer-xov Updated 02 Oct 2025

Summary

14/08/2025
CRITICAL
No i
Critical
Not published

MAL-2025-16301: Malicious code in buffer-xov (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The buffer-xov package is an npm library designed for handling buffer operations in JavaScript applications. It provides various functionalities for manipulating binary data, making it a useful tool for developers working with data streams and binary formats. However, the package has been identified to contain malicious code, posing significant risks to applications that utilize it.

Vulnerability Detail

The vulnerability in the buffer-xov package stems from the inclusion of malicious code that can compromise the security of applications using this library. This code may lead to unauthorized access, data breaches, or other harmful actions within the affected systems. The malicious nature of this vulnerability was discovered by Amazon Inspector, highlighting the importance of scrutinizing third-party packages for security risks.

How To Fix

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

npm uninstall buffer-xov

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, you can avoid using the buffer-xov package altogether and implement alternative libraries that provide similar functionalities without the associated risks. Consider using packages like 'buffer' or 'binary-parser' that are known for their security and reliability.

Conclusion

The buffer-xov package has been identified to contain malicious code that poses significant security risks to applications. It is essential for developers to take immediate action by removing the package and replacing it with a secure alternative. Utilizing tools like Vulert can help in monitoring and managing open-source vulnerabilities effectively.

See every vulnerability recorded for buffer-xov →

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FAQ

The buffer-xov package is an npm library used for handling buffer operations in JavaScript applications.

The malicious code can lead to unauthorized access and potential data breaches in applications 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 any signup.

You should remove the buffer-xov package and replace it with a secure alternative or update to a patched version if available.

Regularly monitor your dependencies for vulnerabilities using tools like Vulert and keep your packages updated to their latest secure versions.

Related vulnerabilities

Recent vulnerabilities recorded for buffer-xov.

How To Fix

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

npm uninstall buffer-xov

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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