Malicious Code Injection in muklis-59: A Threat to npm Ecosystem
Summary
MAL-2025-160845: Malicious code in muklis-59 (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 package 'muklis-59' is part of a series of malicious 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. The malicious nature of these packages poses a significant risk to the integrity of the npm registry and can lead to widespread pollution of the ecosystem.
Vulnerability Detail
The vulnerability in 'muklis-59' originates from its design to include autopublish scripts that modify the package.json file. This modification removes private flags, alters version numbers, and generates random package names, which can lead to the proliferation of malicious packages in the npm registry. The ramifications include potential security risks for developers who unknowingly install these packages, as they may introduce vulnerabilities or malicious code into their applications.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall muklis-59If 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 'muklis-59' and any other packages associated with the tea.xyz token reward campaign. Additionally, consider using tools like Vulert to monitor your project for vulnerabilities. You can check if your application is affected by this vulnerability using the Vulert playground at https://vulert.com/scanner without any signup.
Conclusion
The 'muklis-59' package represents a significant threat to the npm ecosystem due to its malicious design aimed at inflating developer reputation scores. It is crucial for developers to be vigilant about the packages they use and to take immediate action to remove any malicious packages from their projects.
See every vulnerability recorded for muklis-59 →
FAQ
'muklis-59' is a malicious npm package that is part of a campaign to inflate developer reputation scores by flooding the npm registry with derivative packages.
Installing 'muklis-59' can lead to the introduction of malicious code into your project, potentially compromising its security and integrity.
You should uninstall 'muklis-59' immediately by running 'npm uninstall muklis-59' in your terminal.
Regularly audit your dependencies, use trusted packages, and consider using tools like Vulert to monitor for vulnerabilities in real-time.
Vulert is a tool that monitors and alerts for open-source vulnerabilities in your software using just the package-lock.json file. It provides real-time alerts without requiring code access or installation.
