Malicious Code Injection in mulyono-tiwul77-riris Package
Summary
MAL-2025-88551: Malicious code in mulyono-tiwul77-riris (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 mulyono-tiwul77-riris package is part of the npm ecosystem, often used for various JavaScript applications. However, it has been identified as part of a malicious campaign that floods the npm registry with derivative packages. These packages are designed to inflate developer reputation scores for token rewards, making them a significant threat to the integrity of the npm ecosystem.
Vulnerability Detail
The vulnerability in the mulyono-tiwul77-riris package stems from its inclusion in a malicious campaign that modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This behavior leads to the automatic generation and republishing of derivative packages, polluting the npm registry and potentially compromising the security of applications that depend on these packages. The malicious payload can result in unauthorized access and manipulation of application dependencies.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall mulyono-tiwul77-riris
If 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 workaround, you can avoid using the mulyono-tiwul77-riris package and replace it with a trusted alternative. Always verify the integrity and source of packages before including them in your project.
Conclusion
The mulyono-tiwul77-riris package poses a significant threat due to its malicious behavior of modifying package files and republishing variants. It is essential to remove this package and monitor your dependencies regularly to maintain the security of your applications.
See every vulnerability recorded for mulyono-tiwul77-riris →
FAQ
It is an npm package that has been identified as part of a malicious campaign to inflate developer reputation scores.
The vulnerability can lead to unauthorized modifications of your application's dependencies, potentially compromising its security.
You should uninstall the package immediately using 'npm uninstall mulyono-tiwul77-riris' and check for any other affected packages.
You can use tools like Vulert, which monitors your package-lock.json for open-source vulnerabilities in real-time without requiring code access.
Yes, you can use the Vulert playground at Vulert Scanner to check for vulnerabilities in your application without any signup.