Critical Malicious Code Vulnerability in eslint-supertest Package
Summary
MAL-2026-58: Malicious code in eslint-supertest (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
eslint-supertest is an npm package that integrates ESLint with Supertest, allowing developers to run HTTP assertions on their Node.js applications. It is commonly used in testing environments to ensure that APIs behave as expected. However, this package has been compromised, leading to severe security risks for any system that has it installed.
Vulnerability Detail
The vulnerability stems from the presence of malicious code embedded within the eslint-supertest package. This code can compromise any computer that has the package installed, potentially allowing unauthorized access to sensitive information such as secrets and keys. The origin of this issue is linked to a malicious actor who has manipulated the package, making it imperative for users to take immediate action to secure their systems.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall eslint-supertestIf 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 and ensuring that all sensitive information is secured. Users should avoid using eslint-supertest until a verified and safe version is available.
Conclusion
The eslint-supertest package has been compromised with malicious code, posing a significant risk to any systems that have it installed. Immediate removal of the package and rotation of sensitive information is essential. Users should stay vigilant and utilize tools like Vulert to monitor for vulnerabilities in their applications.
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FAQ
You should immediately remove the eslint-supertest package and rotate any sensitive information stored on your system.
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Currently, there is no patched version available. Users are advised to remove the package entirely.
Failure to address this vulnerability could lead to unauthorized access to sensitive data and full compromise of your system.
Vulert monitors and alerts users in real-time for open-source vulnerabilities using just the package-lock.json file, providing an easy way to stay informed.
