Malicious Code Injection in intan-19 Package: npm Vulnerability Overview
Summary
MAL-2025-156527: Malicious code in intan-19 (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The intan-19 package is part of the npm ecosystem, primarily used for JavaScript development. It is associated with the tea.xyz token reward campaign, which has been known to flood the npm registry with malicious packages. These packages often include scripts designed to manipulate package metadata and publish numerous derivative versions, ultimately affecting the integrity of the npm registry.
Vulnerability Detail
The vulnerability in the intan-19 package stems from its inclusion in a malicious campaign that utilizes autopublish scripts to generate and publish derivative packages with randomized names. This manipulation removes private flags from package.json, alters version numbers, and continuously republishes variants, leading to pollution of the npm registry. The malicious nature of this package can compromise developer reputation and the overall security of applications relying on it.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall intan-19If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, you can prevent the installation of the intan-19 package by adding it to your project's .npmrc file with the following line: 'package-lock=false'. This will help avoid the installation of this malicious package until a fix is implemented.
Conclusion
The intan-19 package poses a significant risk due to its malicious code designed to manipulate npm package metadata. It is crucial for developers to remove this package and monitor their dependencies for vulnerabilities to maintain the security of their applications.
See every vulnerability recorded for intan-19 →
FAQ
The intan-19 package is an npm package that has been identified as part of a malicious campaign aimed at manipulating the npm registry.
The vulnerability can lead to the pollution of the npm registry, affecting the integrity of your application's dependencies and potentially compromising security.
You should immediately remove the intan-19 package from your project and update to a secure version if available.
Yes, you can use tools like Vulert, which monitors and alerts for open-source vulnerabilities in your software using just package-lock.json.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
