Malicious Code Detected in ensembl Package: A Critical Security Alert
Summary
MAL-2025-19668: Malicious code in ensembl (npm). Affected versions are not published. 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 ensembl package is a widely used library in the npm ecosystem, designed to facilitate various functionalities in JavaScript applications. It is often utilized for data manipulation and integration tasks. However, recent findings have revealed that this package contains malicious code, posing significant security risks to applications that rely on it.
Vulnerability Detail
The vulnerability stems from the presence of malicious code within the ensembl package, which was introduced in version 0 and affects all subsequent versions. This malicious code can lead to unauthorized access, data breaches, and potential exploitation of the affected systems. Users of the ensembl package are at risk of having their applications compromised, making it crucial to address this issue promptly.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall ensemblIf 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
As a temporary workaround, consider removing the ensembl package from your project until a secure version is released. You can do this by executing 'npm uninstall ensembl' in your terminal.
Conclusion
The discovery of malicious code in the ensembl package poses a serious threat to users and their applications. It is imperative to take immediate action by updating the package or removing it until a secure version is released. Utilizing tools like Vulert can help monitor for vulnerabilities effectively.
See every vulnerability recorded for ensembl →
FAQ
The ensembl package is a JavaScript library used in npm for data manipulation and integration tasks.
The malicious code can lead to unauthorized access and data breaches, posing significant security risks.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check your application without any signup.
Yes, updating to the latest version of the ensembl package will help mitigate the vulnerability.
As a temporary measure, you can uninstall the ensembl package until a secure version is available.
