Malicious Code Injection in intan-39 Package: A Threat to npm Users
Summary
MAL-2025-156548: Malicious code in intan-39 (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The intan-39 package is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. This package is designed to facilitate the automatic generation and publication of derivative packages, which can inflate developer reputation scores for token rewards. However, it has been identified as containing malicious code that compromises the integrity of the npm registry.
Vulnerability Detail
The vulnerability in the intan-39 package stems from its malicious payload that modifies the package.json file. This includes removing private flags, altering version numbers, and generating random package names, which leads to the continuous republishing of variants that pollute the npm registry. The origin of this vulnerability is linked to the tea.xyz token reward campaign, which employs autopublish scripts to automate the creation of these malicious packages. The ramifications include potential security risks for developers and users who may unknowingly install these compromised packages, leading to further exploitation.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall intan-39If 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-39 package and instead rely on alternative packages that do not exhibit malicious behavior. Additionally, regularly audit your npm packages using tools like npm audit to identify and address vulnerabilities.
Conclusion
The intan-39 package poses a significant security risk due to its malicious code that alters package metadata and floods the npm registry. It is crucial for developers to remove this package and monitor their projects for vulnerabilities to maintain security and integrity.
See every vulnerability recorded for intan-39 →
FAQ
The intan-39 package is an npm package associated with the tea.xyz token reward campaign, designed to automate the generation of derivative packages.
The vulnerability can lead to the installation of malicious packages that may compromise your project's security and integrity.
You should immediately remove the intan-39 package from your project and monitor for any updates or patches.
You can use tools like Vulert, which monitors your package-lock.json file for open-source vulnerabilities in real-time, alerting you to any issues.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring a signup.
