Vue 2.7.12 is the latest stable release in the Vue 2 series, succeeding version 2.7.11. Both versions are reactive, component-oriented view layers designed for building modern web interfaces, sharing the same core philosophy and MIT license. Developers familiar with Vue 2 will find the upgrade straightforward, as the fundamental concepts remain consistent.
The key difference lies in the @vue/compiler-sfc dependency, which is updated from 2.7.11 to 2.7.12. This likely includes bug fixes and potentially minor performance improvements within the single-file component compilation process. While the developer experience remains largely unchanged, upgrading to 2.7.12 ensures access to the latest refinements and potential security patches within the component compilation pipeline. Both releases depend on a comprehensive suite of development tools like Rollup for bundling, Terser for minification, and TypeScript for type checking, demonstrating Vue's commitment to a robust and modern development ecosystem. Developers can also leverage tools like jsdom and Puppeteer for testing and Enquirer for interactive CLI prompts. The consistent set of devDependencies indicates stability and maturity of the Vue 2 tooling. The unpacked size has also slightly decreased from 4483052 to 4482653. If you're using Vue 2, upgrading to 2.7.12 is recommended for the latest improvements. Especially, if you are still using Vue 2, upgrading to latest 2.7.x is recommended as latest minor releases contain new features.
All the vulnerabilities related to the version 2.7.12 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.