Moderate Security Vulnerability in Environment-Modules Package: Command Injection Risk
Summary
ALSA-2026:84594: Moderate: environment-modules security update. Affects environment-modules versions < 5.3.0-2.el9_8.1. Fixed in 5.3.0-2.el9_8.1. How to fix ↓
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Background
The environment-modules package is designed to facilitate dynamic modification of user environments through the use of module files. These module files contain essential information for configuring the shell for various applications. Once initialized, users can modify their environment on a per-module basis using the 'module' utility, which interprets these module files. This flexibility is crucial for managing different software environments, especially in multi-user systems.
Vulnerability Detail
The vulnerability identified as CVE-2026-85013 involves a command injection risk within the environment-modules package. This issue arises from the handling of malicious module names that contain shell metacharacters. If an attacker can manipulate module names, they may execute arbitrary commands in the shell context, potentially leading to unauthorized access or system compromise. The ramifications of this vulnerability can be severe, especially in environments where multiple users have access to the module system.
How To Fix
Minimum fixed version
5.3.0-2.el9_8.1
This is the first release that contains the fix.
sudo dnf update environment-modulesTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users can avoid using module names that contain shell metacharacters until the package is updated. This can help mitigate the risk of command injection until a proper fix is applied.
Conclusion
The environment-modules package has a moderate security vulnerability that can lead to command injection through malicious module names. It is crucial for users to update to the latest patched version to secure their systems. Additionally, utilizing tools like Vulert can help in monitoring and managing open-source vulnerabilities effectively.
See every vulnerability recorded for environment-modules →
FAQ
The vulnerability allows for command injection through malicious module names that include shell metacharacters.
You can check if your application is affected by using the Vulert playground at Vulert Scanner, which analyzes your manifest file for vulnerabilities.
Update the environment-modules package to version 5.3.0-2.el9_8.1 or later to mitigate the vulnerability.
Yes, Vulert provides real-time monitoring and alerts for open-source vulnerabilities using just a manifest file like package-lock.json.
Shell metacharacters are special characters in shell commands that have specific meanings, such as executing commands or redirecting input/output. They pose a risk when included in module names, as they can be exploited for command injection.
Related vulnerabilities
Recent vulnerabilities recorded for environment-modules.
