Vite is a popular frontend tooling framework for JavaScript, aiming to provide a faster and leaner development experience for developers. A recently discovered security vulnerability, identified as CVE-2025-31125, affects Vite and potentially exposes the content of non-allowed files. In this post, we will take a closer look at the vulnerability, its potential impact, and how to fix it.
The Vulnerability: CVE-2025-31125
The vulnerability stems from the Vite dev server, where certain query parameters could be used to disclose the content of files that should not be accessible. This issue affects applications that have explicitly exposed the Vite dev server to the network, typically through the use of the --host flag, or by setting the server.host configuration option.
The problem arises when using the ?inline&import or ?raw?import query parameters in a URL that points to a file which should not be accessible. An attacker could use this to view and potentially exploit sensitive information.
Here's a code snippet showing how the vulnerability could be exploited
// Exploit by accessing non-allowed file
// Replace "non_allowed_file_path" with the path to a non-allowed file
const nonAllowedFileContent = await import('/non_allowed_file_path?inline&import');
console.log(nonAllowedFileContent);
Original References
The CVE-2025-31125 vulnerability was first reported by [link to original source](#). You can also find more details about the issue on the Vite GitHub repository.
To fix the vulnerability, simply update your Vite dependency to the corresponding patched version
# Using npm:
npm install vite@latest
# Using yarn:
yarn add vite@latest
Keep in mind that only applications explicitly exposing the Vite dev server to the network are affected by this vulnerability. If your application does not expose the dev server to the network, you are not vulnerable.
Closing Thoughts
While the CVE-2025-31125 vulnerability may not affect every Vite application, it is still essential for developers to be aware of this issue and update their dependencies accordingly. By being proactive and staying informed about security updates, we can help maintain the robustness and safety of our applications, ensuring a secure experience for our users.
Timeline
Published on: 03/31/2025 17:15:43 UTC
Last modified on: 04/01/2025 20:26:22 UTC