Malicious Code Injection in silly_meadowlark-excellentdev Package
Summary
MAL-2025-108687: Malicious code in silly_meadowlark-excellentdev (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 silly_meadowlark-excellentdev package is part of the npm ecosystem, often utilized in JavaScript projects for various development tasks. However, it has been identified as part of a malicious campaign that aims to inflate developer reputation scores through the creation of numerous derivative packages. This package, like others in the campaign, contains scripts that automate the generation and publication of these derivatives, leading to potential security risks.
Vulnerability Detail
The vulnerability stems from the package's involvement in the tea.xyz token reward campaign, which has been known to flood the npm registry with malicious packages. The malicious payload modifies the package.json file by removing private flags, altering version numbers, and generating random package names. This behavior can lead to the pollution of the npm registry, making it difficult for developers to find legitimate packages and potentially exposing their projects to further vulnerabilities.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall silly_meadowlark-excellentdevIf 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 silly_meadowlark-excellentdev package and look for alternative packages that provide similar functionality without the associated risks. Additionally, consider using tools like Vulert to monitor your project for vulnerabilities.
Conclusion
The silly_meadowlark-excellentdev package poses a significant security risk due to its involvement in a malicious campaign. It is crucial for developers to remove this package from their projects and monitor for any potential vulnerabilities using tools like Vulert. Staying informed and proactive is key to maintaining the security of your software.
See every vulnerability recorded for silly_meadowlark-excellentdev →
FAQ
It is an npm package that has been identified as part of a malicious campaign aimed at inflating developer reputation scores.
The vulnerability can lead to the pollution of the npm registry and expose your project to further security risks.
You should uninstall the package immediately and look for alternative solutions.
Currently, there is no patch for the silly_meadowlark-excellentdev package, so it is recommended to remove it from your project.
You can use Vulert, which monitors your package-lock.json file to alert you in real-time for open-source vulnerabilities.
