Malicious Code Injection in deep_coyote-silentdev Package
Summary
MAL-2025-101256: Malicious code in deep_coyote-silentdev (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 deep_coyote-silentdev package is part of the npm ecosystem, which is widely used for JavaScript package management. This package, like many others, is intended to facilitate development by providing reusable code components. However, it has been identified as part of a malicious campaign that exploits npm's publishing capabilities, leading to potential security risks for developers and their applications.
Vulnerability Detail
The vulnerability in the deep_coyote-silentdev package stems from its association with a malicious campaign aimed at inflating developer reputation scores through the automatic generation and publication of derivative packages. The malicious code modifies the package.json file to remove private flags, alters version numbers, and creates numerous random package names, which can lead to pollution of the npm registry. This not only compromises the integrity of the npm ecosystem but also exposes developers to potential security threats if they inadvertently use these compromised packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall deep_coyote-silentdevIf 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 deep_coyote-silentdev package and look for alternative packages that provide similar functionality without the associated risks. Always verify the integrity and reputation of packages before including them in your project.
Conclusion
The deep_coyote-silentdev package poses a significant security risk due to its malicious code designed to manipulate npm's publishing system. It is crucial for developers to be vigilant about the packages they use and to take immediate action to remove any compromised packages from their projects.
See every vulnerability recorded for deep_coyote-silentdev →
FAQ
It is an npm package that has been identified as part of a malicious campaign to inflate developer reputation scores.
Using the compromised package can lead to security risks, including the potential for malicious code execution and pollution of the npm registry.
You should uninstall the deep_coyote-silentdev package immediately and check your project for any other potentially compromised packages.
You can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities by analyzing your package-lock.json file. You can also check your application using the Vulert playground without any signup.
Yes, you should look for reputable packages that offer similar functionality but do not have the associated risks of malicious code.
