Vue 2.7.14 represents a minor update to the Vue 2 library, building upon the solid foundation of Vue 2.7.13. While the core functionality remains consistent, developers should note a key difference in the dependencies: @vue/compiler-sfc has been updated from version 2.7.13 to 2.7.14. Usually, these updates signal important bug fixes, performance improvements, or support for newer language features within Single-File Components (SFCs).
For developers using Single-File Components, this update to the compiler is crucial. It might resolve compatibility issues with specific syntax or features, allowing for smoother development and build processes. While the change list between ensures no breaking API changes, developers are encouraged to review the changelog of @vue/compiler-sfc 2.7.14 to understand the specific changes and potential benefits. This meticulous approach guarantees a seamless transition and optimal performance for Vue applications. Both releases maintain the same development dependencies, author, license and the core description focusing on Vue's reactive, component oriented architecture. Ultimately, upgrading to Vue 2.7.14 is recommended for all Vue 2 users to ensure they have the latest fixes.
All the vulnerabilities related to the version 2.7.14 of the package
ReDoS vulnerability in vue package that is exploitable through inefficient regex evaluation in the parseHTML function
The ReDoS can be exploited through the parseHTML function in the html-parser.ts file. This flaw allows attackers to slow down the application by providing specially crafted input that causes inefficient processing of regular expressions, leading to excessive resource consumption.
To demonstrate this vulnerability, here's an example. In a Vue client-side application, create a new Vue instance with a template string that includes a <script> tag but closes it incorrectly with something like </textarea>.
new Vue({
el: '#app',
template: '
<div>
Hello, world!
<script>${'<'.repeat(1000000)}</textarea>
</div>'
});
Next, set up a basic HTML page (e.g., index.html) to load this JavaScript and mount the Vue instance:
<!DOCTYPE html>
<html>
<head>
<title>My first Vue app</title>
</head>
<body>
<div id=\"app\">Loading...</div>
</body>
</html>
When you visit the app in your browser at http://localhost:3000, you'll notice that the time taken to parse and mount the Vue application increases significantly due to the ReDoS vulnerability, demonstrating how the flaw can affect performance.