Malicious Code Injection in intan-33 Package: npm Vulnerability Overview
Summary
MAL-2025-156542: Malicious code in intan-33 (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The intan-33 package is part of the npm ecosystem, which is widely used for managing JavaScript packages. This package is associated with the tea.xyz token reward campaign, which has been known to flood the npm registry with malicious packages. The primary function of intan-33 is to facilitate the distribution of these token rewards, but it has been compromised to include harmful scripts that manipulate package metadata.
Vulnerability Detail
The vulnerability in the intan-33 package originates from its involvement in a malicious campaign that aims to inflate developer reputation scores through the automatic generation and publication of derivative packages. The malicious code modifies the package.json file by removing private flags, altering version numbers, and creating random package names, which leads to pollution of the npm registry. This can result in developers unknowingly using compromised packages, potentially exposing their applications to further vulnerabilities.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall intan-33If 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 avoid using the intan-33 package and replace it with a trusted alternative. Always verify the integrity of packages before installation.
Conclusion
The intan-33 package poses a significant risk due to its malicious code that alters package metadata and floods the npm registry. It is crucial to remove this package and monitor your projects for vulnerabilities to maintain the integrity of your applications.
See every vulnerability recorded for intan-33 →
FAQ
The intan-33 package is an npm package associated with the tea.xyz token reward campaign, which has been compromised to include malicious code.
The malicious code modifies package metadata, potentially leading to the use of compromised packages and exposing your application to further vulnerabilities.
You should uninstall the intan-33 package immediately using the command npm uninstall intan-33 and check for any other affected packages.
You can use tools like Vulert, which monitors your package-lock.json file to alert you in real-time for open-source vulnerabilities.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.
