Critical Malicious Code Vulnerability in zalando-consent-api Package

zalando-consent-api Updated 04 Feb 2026

Summary

04/02/2026
CRITICAL
No i
Critical
Not published

MAL-2026-729: Malicious code in zalando-consent-api (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The zalando-consent-api package is an npm library designed to manage user consent for data processing in web applications. It provides functionalities to handle consent requests and responses, ensuring compliance with data protection regulations. However, this package has been compromised, embedding malicious code that poses significant security risks to any system using it.

Vulnerability Detail

The zalando-consent-api package contains malicious code that can fully compromise any computer where it is installed or running. This vulnerability originates from a malicious actor who has embedded harmful code within the package. The ramifications include unauthorized access to sensitive data, potential data breaches, and complete control of the affected system by external entities. Users are advised to treat any system with this package as compromised and take immediate action.

How To Fix

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

npm uninstall zalando-consent-api

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. If your application relies on this package, consider looking for alternative libraries that provide similar functionality without the associated risks.

Conclusion

The zalando-consent-api package has been compromised with malicious code, posing severe security risks to any system using it. Immediate removal of the package is necessary, and all sensitive credentials should be rotated. Users are encouraged to utilize tools like Vulert to monitor for vulnerabilities in their applications.

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FAQ

Immediately uninstall the zalando-consent-api package and rotate any sensitive credentials stored on the affected system.

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 needing to sign up.

No, there is currently no patched version available for zalando-consent-api. The only action is to uninstall the package.

Failing to address this vulnerability can lead to unauthorized access to sensitive data, potential data breaches, and loss of control over your system.

It is highly discouraged to continue using zalando-consent-api due to the embedded malicious code. It is best to remove it and find a safer alternative.

How To Fix

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

npm uninstall zalando-consent-api

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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