Critical Malicious Code Vulnerability in syntax-decorators Package
Summary
MAL-2026-1531: Malicious code in syntax-decorators (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The syntax-decorators package is a Node.js library used for enhancing JavaScript syntax with decorators, allowing developers to write cleaner and more maintainable code. However, this package has been identified as containing malicious code, posing significant security risks to any system where it is installed.
Vulnerability Detail
The vulnerability originates from the presence of embedded malicious code within the syntax-decorators package. This code can compromise the entire system, allowing unauthorized access to sensitive information such as secrets and keys. Once installed, the package grants full control of the affected computer to an external entity, making it imperative for users to act swiftly to mitigate potential damage.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall syntax-decoratorsIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
Currently, there are no effective workarounds to mitigate the risks posed by this vulnerability other than removing the package and securing the system.
Conclusion
The syntax-decorators package has been identified as containing malicious code that poses a severe security risk. Immediate action is required to remove the package and secure any sensitive information. Users are encouraged to monitor their systems for vulnerabilities using tools like Vulert.
See every vulnerability recorded for syntax-decorators →
FAQ
The syntax-decorators package is a library for Node.js that allows developers to use decorators in JavaScript, enhancing code readability and maintainability.
The malicious code can compromise your entire system, allowing unauthorized access to sensitive information and potentially leading to data breaches.
You should remove the syntax-decorators package immediately and rotate any sensitive information stored on the affected system.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. You can check your application using the Vulert playground without any signup.
While removing the package is crucial, there is no guarantee that all malicious software has been removed. It is essential to secure your system and rotate any compromised secrets.
