Critical Security Update for nodejs-nodemon: Denial of Service Vulnerability
Summary
ALSA-2026:48032: Important: nodejs-nodemon security update. Affects nodejs-nodemon versions < 3.1.14-2.el10_2. Fixed in 3.1.14-2.el10_2. 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
nodejs-nodemon is a development tool designed to monitor changes in files and automatically restart Node.js applications, enhancing the development workflow. It simplifies the process of running Node.js applications by eliminating the need for manual restarts, allowing developers to focus on coding. However, a recent vulnerability has been identified that could lead to a Denial of Service (DoS) due to exponential-time complexity in the brace-expansion module, which is utilized by nodemon.
Vulnerability Detail
The vulnerability, identified as CVE-2026-13149, arises from the brace-expansion module used in nodejs-nodemon. This flaw can be exploited to trigger a Denial of Service condition, where an attacker can cause the application to consume excessive resources, leading to potential crashes or unresponsiveness. The issue stems from the way brace expansion handles certain inputs, resulting in exponential-time complexity that can be easily manipulated. This vulnerability poses a significant risk to applications relying on nodemon for development, as it can disrupt the development process and affect productivity.
How To Fix
Minimum fixed version
3.1.14-2.el10_2
This is the first release that contains the fix.
sudo dnf update nodejs-nodemonTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If immediate updating is not feasible, consider temporarily disabling nodemon or using an alternative method to monitor file changes until the package can be updated. You can run your Node.js application without nodemon using the command: 'node your_script.js'.
Conclusion
The nodejs-nodemon package has a critical vulnerability that can lead to Denial of Service attacks. It is essential to update to the latest patched version to ensure the security and stability of your development environment. Utilize tools like Vulert to monitor for vulnerabilities and maintain best practices in software development.
See every vulnerability recorded for nodejs-nodemon →
FAQ
The vulnerability is a Denial of Service issue caused by exponential-time complexity in the brace-expansion module, which can lead to application crashes.
You can use Vulert, which monitors and alerts for open-source vulnerabilities. Visit Vulert Scanner to check your application without any signup.
Run 'sudo dnf update nodejs-nodemon' in your terminal to update to the patched version 3.1.14-2.el10_2 or later.
While specific exploits have not been publicly disclosed, the vulnerability's nature allows for potential resource exhaustion attacks.
Consider disabling nodemon temporarily or running your application directly with the command 'node your_script.js' until you can apply the update.
Related vulnerabilities
Recent vulnerabilities recorded for nodejs-nodemon.
