Malicious Code Detected in wac-relay-runtime Package - Version 99.99.1
Summary
MAL-2026-202: Malicious code in wac-relay-runtime (npm). Affects wac-relay-runtime versions 99.99.1. No fix is published. How to fix ↓
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Background
The wac-relay-runtime package is an npm library designed for facilitating real-time communication and data relay in web applications. It is widely used for its ability to streamline data transfer processes. However, the package version 99.99.1 has been identified as malicious, executing commands that can lead to harmful behavior in applications utilizing it.
Vulnerability Detail
The vulnerability in the wac-relay-runtime package arises from its malicious code execution capabilities. Identified by the OpenSSF Package Analysis project, this package executes commands that can compromise the security of applications. The malicious behavior can lead to unauthorized access, data breaches, or other harmful actions within the software environment. This vulnerability is particularly concerning as it can affect any application that relies on this specific version of the package.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall wac-relay-runtimeIf 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 wac-relay-runtime package from your project until a secure version is confirmed. You can do this by running the command: 'npm uninstall wac-relay-runtime'. Additionally, consider using alternative packages that provide similar functionality without the associated risks.
Conclusion
The wac-relay-runtime package version 99.99.1 has been flagged for malicious behavior, posing significant risks to applications that utilize it. It is crucial to update or remove the package to safeguard your software environment. Utilizing tools like Vulert can help monitor and alert for such vulnerabilities in real-time.
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FAQ
The wac-relay-runtime package is an npm library used for real-time communication and data relay in web applications.
The malicious behavior was identified by the OpenSSF Package Analysis project, which monitors and analyzes open-source packages for security vulnerabilities.
Using the compromised version can lead to unauthorized access, data breaches, and other harmful actions within your application.
You can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities using just your package-lock.json file. You can check if your application is affected by visiting the Vulert playground.
Yes, you can use the Vulert playground at Vulert Scanner to check for vulnerabilities in your application without requiring any signup.
