Critical Malicious Code Vulnerability in zuper-sdk Package
Summary
MAL-2025-191156: Malicious code in zuper-sdk (npm). Affects zuper-sdk versions 1.0.57. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The zuper-sdk package is a JavaScript library available through npm, designed to facilitate various functionalities in web applications. It is widely used for its ease of integration and extensive features. However, recent findings have revealed that this package contains malicious code that compromises the security of any system where it is installed.
Vulnerability Detail
The vulnerability stems from embedded malicious code within the zuper-sdk package, identified as version 1.0.57. This code can grant unauthorized access to the system, allowing attackers to potentially exfiltrate sensitive information such as secrets and keys. The origin of this vulnerability is linked to a malicious actor who has injected harmful code into the package, making any system running it fully compromised. Users are advised to treat any system with this package installed as at risk and take immediate action.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall zuper-sdkIf 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
Currently, there are no effective workarounds to mitigate the risks associated with the zuper-sdk package. The best course of action is to uninstall the package and secure your system.
Conclusion
The zuper-sdk package has been compromised with malicious code, posing a significant risk to any system where it is installed. Immediate action is required to remove the package and secure sensitive information. Users are encouraged to monitor their systems for vulnerabilities using tools like Vulert.
See every vulnerability recorded for zuper-sdk →
FAQ
zuper-sdk is a JavaScript library available on npm, used for various functionalities in web applications.
The malicious code can grant unauthorized access to your system, potentially allowing attackers to steal sensitive information.
You should immediately uninstall the zuper-sdk package and rotate any secrets or keys stored on your system.
As of now, there is no patched version available. The best action is to remove the package entirely.
You can use Vulert, which monitors and alerts 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 without any signup.
