Malicious Code Injection in messi-ata-fuf Package: npm Vulnerability Alert
Summary
MAL-2025-160292: Malicious code in messi-ata-fuf (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 messi-ata-fuf package is part of a series of npm packages that emerged during the tea.xyz token reward campaign. These packages are designed to manipulate the npm registry by automatically generating and publishing derivative packages. This behavior is intended to inflate developer reputation scores for rewards associated with the tea protocol. The package's functionality is compromised due to the presence of malicious scripts that alter its metadata.
Vulnerability Detail
The vulnerability stems from malicious code embedded in the messi-ata-fuf package, which modifies the package.json file to remove private flags and changes version numbers. It generates random package names, often themed around Indonesian culture, and continuously republishes these variants to pollute the npm registry. This behavior can lead to a loss of trust in the npm ecosystem, as it clutters the registry with potentially harmful packages and can affect developers' ability to find legitimate packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall messi-ata-fuf
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 measure, you can avoid using the messi-ata-fuf package and any packages that depend on it. Regularly audit your project's dependencies using tools like npm audit to identify and mitigate vulnerabilities.
Conclusion
The messi-ata-fuf package poses a significant risk due to its malicious behavior of modifying package metadata and republishing variants to the npm registry. It is crucial for developers to remove this package and monitor their dependencies for vulnerabilities to maintain the integrity of their projects.
See every vulnerability recorded for messi-ata-fuf →
FAQ
The messi-ata-fuf package is an npm package that is part of a malicious campaign aimed at inflating developer reputation scores through automated publishing of derivative packages.
This vulnerability can lead to the pollution of the npm registry, making it difficult to find legitimate packages and potentially introducing security risks into your project.
You should uninstall the messi-ata-fuf package immediately using npm uninstall messi-ata-fuf and check for any dependencies that may rely on it.
You can use tools like npm audit to regularly check for vulnerabilities in your project's dependencies. Additionally, Vulert can monitor your package-lock.json for real-time alerts on open-source vulnerabilities.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.