Critical Malicious Code Vulnerability in xpack-arc-gateway Package

xpack-arc-gateway Updated 03 Mar 2026

Summary

03/03/2026
CRITICAL
No i
Critical
Not published

MAL-2026-1158: Malicious code in xpack-arc-gateway (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The xpack-arc-gateway package is a component in the npm ecosystem that facilitates various functionalities related to application performance and monitoring. It is designed to enhance the capabilities of applications by providing features such as data visualization and analytics. However, this package has been identified to contain malicious code, posing significant risks to any system where it is installed.

Vulnerability Detail

The vulnerability stems from the presence of embedded malicious code within the xpack-arc-gateway package. This code can compromise the entire system, allowing unauthorized access to sensitive information, including secrets and keys. The origin of this vulnerability is linked to the package being flagged as malicious by security researchers, indicating that any system running this package should be considered fully compromised. The ramifications include potential data breaches and loss of control over the affected systems.

How To Fix

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

npm uninstall xpack-arc-gateway

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

There are no effective workarounds for this vulnerability other than removing the package entirely. Ensure that you monitor your systems for any signs of compromise and take necessary actions to secure your environment.

Conclusion

The xpack-arc-gateway package contains malicious code that poses a severe threat to any system using it. Immediate action is required to remove the package and secure any sensitive information. Regular monitoring of your dependencies is crucial to maintaining a secure environment.

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FAQ

You should immediately uninstall the package and rotate any secrets or keys stored on the affected system.

You can use the Vulert playground at Vulert Scanner to check if your application is affected without requiring any signup.

Currently, there is no patched version available for the xpack-arc-gateway package.

Failing to address this vulnerability can lead to unauthorized access to sensitive information and complete compromise of your system.

While many packages are safe, it is essential to regularly monitor and audit your dependencies for vulnerabilities using tools like Vulert.

How To Fix

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

npm uninstall xpack-arc-gateway

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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