Critical Malicious Code Vulnerability in duer-js Package
Summary
MAL-2026-1033: Malicious code in duer-js (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The duer-js package is a JavaScript library available through npm, designed for various functionalities in web development. However, it has been identified to contain malicious code that compromises the security of systems where it is installed. This vulnerability poses a significant risk as it can lead to unauthorized access and control over affected systems.
Vulnerability Detail
The vulnerability originates from the presence of embedded malicious code within the duer-js package. Any system running this package is considered fully compromised, allowing attackers to gain control and access sensitive information such as secrets and keys. The malicious nature of this code is classified under CWE-506, indicating that it contains code that appears to be harmful. The implications of this vulnerability are severe, as it can lead to 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 duer-jsIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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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 unauthorized access after removal.
Conclusion
The duer-js package contains critical malicious code that compromises the security of any system it is installed on. Immediate action is required to uninstall the package and secure any sensitive information. Users are encouraged to utilize tools like Vulert for ongoing monitoring of vulnerabilities in their applications.
See every vulnerability recorded for duer-js →
FAQ
duer-js is a JavaScript library available on npm that is used for various web development tasks.
The malicious code can give attackers full control over your system, potentially leading to data breaches and unauthorized access to sensitive information.
No, there is currently no patched version of the duer-js package available. The only solution is to uninstall it.
You should immediately uninstall the duer-js package and rotate any secrets or keys stored on the affected system.
You can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities. You can check if your application is affected by this vulnerability using the Vulert playground without any signup.
