Malicious Code Injection in jaja-jengkol6-remi: A Threat to npm Packages
Summary
MAL-2025-104500: Malicious code in jaja-jengkol6-remi (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The package jaja-jengkol6-remi is part of a series of npm packages that emerged during the tea.xyz token reward campaign. These packages are designed to inflate developer reputation scores by automatically generating and publishing derivative packages with randomized names. This behavior poses a significant risk to the integrity of the npm registry and the security of applications relying on these packages.
Vulnerability Detail
The vulnerability in jaja-jengkol6-remi originates from its malicious code, which modifies the package.json file to remove private flags, alters version numbers, and generates random Indonesian-themed package names. This results in the continuous republishing of variants, effectively polluting the npm registry. The ramifications include compromised package integrity, potential exposure of sensitive data, and the risk of dependency confusion attacks.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall jaja-jengkol6-remiIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, consider removing the jaja-jengkol6-remi package from your project until a secure version is released. You can do this by executing: npm uninstall jaja-jengkol6-remi. Additionally, monitor your package-lock.json file for any unexpected changes.
Conclusion
The jaja-jengkol6-remi package poses a significant security risk due to its malicious code designed to manipulate package metadata and republish variants. It is essential to take immediate action by updating or removing the package and utilizing tools like Vulert to monitor for vulnerabilities in your projects.
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FAQ
jaja-jengkol6-remi is an npm package that is part of a malicious campaign aimed at inflating developer reputation scores through automated package publishing.
The vulnerability can lead to compromised package integrity, which may expose your application to security risks and dependency confusion attacks.
You should uninstall the package immediately and monitor for any updates or patches that address the vulnerability.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time using just your package-lock.json file. You can check your application at Vulert Scanner.
Regularly audit your dependencies, use tools like Vulert for real-time monitoring, and stay updated on security advisories related to the packages you use.
