Malicious Code Injection in yappy_salmon-biggestdev Package
Summary
MAL-2025-111246: Malicious code in yappy_salmon-biggestdev (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The yappy_salmon-biggestdev package is part of the npm ecosystem, primarily used for JavaScript development. It is often involved in various projects that require package management and dependency handling. However, this package has been identified as part of a malicious campaign that floods the npm registry with harmful scripts designed to manipulate package metadata and inflate developer reputation scores.
Vulnerability Detail
The vulnerability in the yappy_salmon-biggestdev package originates from its association with the tea.xyz token reward campaign. This campaign deploys autopublish scripts that modify the package.json file by removing private flags, altering version numbers, and generating random package names. The malicious payload continuously republishes these variants, leading to pollution of the npm registry and potential security risks for developers who unknowingly integrate these packages into their projects.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall yappy_salmon-biggestdevIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, you can remove the yappy_salmon-biggestdev package from your project by executing: npm uninstall yappy_salmon-biggestdev. This will prevent any malicious code from executing while you assess your project's dependencies.
Conclusion
The yappy_salmon-biggestdev package poses a significant security risk due to its malicious code injection capabilities. It is crucial to monitor your dependencies and take immediate action to update or remove affected packages to safeguard your projects.
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FAQ
The yappy_salmon-biggestdev package is an npm package used in JavaScript projects, but it has been identified as malicious due to its involvement in a token reward campaign.
This vulnerability can lead to the injection of malicious code, which may compromise your project's integrity and security by altering package metadata and introducing harmful scripts.
You can use Vulert, a tool that monitors and alerts for open-source vulnerabilities in real-time. By analyzing your package-lock.json file, Vulert can help you identify if your application is affected by this vulnerability.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
If you cannot update the package, consider removing it from your project as a temporary measure and look for alternative packages that provide similar functionality without the associated risks.
