Malicious Code Injection in putra-jamblang96-kyuki Package
Summary
MAL-2025-89560: Malicious code in putra-jamblang96-kyuki (npm). Affected versions are not published. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The putra-jamblang96-kyuki package is part of the npm ecosystem, typically used for JavaScript development. It is associated with the tea.xyz token reward campaign, which has been known to flood the npm registry with packages that manipulate developer reputation scores. This package, like others in the campaign, is designed to automatically generate and publish derivative packages with randomized names, leading to potential misuse and pollution of the npm registry.
Vulnerability Detail
The vulnerability in the putra-jamblang96-kyuki package stems from its malicious payload, which modifies the package.json file to remove private flags and alters version numbers. It generates random package names, primarily themed around Indonesian culture, and continuously republishes these variants. This behavior not only compromises the integrity of the npm registry but also poses a risk to developers who may unknowingly use these tainted packages, leading to potential security breaches in their applications.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall putra-jamblang96-kyukiIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
As a temporary measure, you can avoid using the putra-jamblang96-kyuki package and replace it with a trusted alternative that provides similar functionality. Additionally, regularly audit your dependencies to ensure no malicious packages are included in your project.
Conclusion
The putra-jamblang96-kyuki package poses a significant risk due to its malicious behavior, which can compromise the security of applications using it. It is essential to remove this package and monitor your dependencies regularly to maintain a secure development environment.
See every vulnerability recorded for putra-jamblang96-kyuki →
FAQ
It is an npm package associated with the tea.xyz token reward campaign, known for flooding the npm registry with malicious packages.
The vulnerability can lead to the inclusion of malicious code in your application, potentially compromising its security and integrity.
You should uninstall the putra-jamblang96-kyuki package immediately and audit your project for any other potentially malicious dependencies.
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 for vulnerabilities in your application without requiring any signup.
