Vue 2.7.7 is a minor release in the Vue 2 series, building upon the solid foundation of Vue 2.7.6. While the core functionality remains consistent, developers will appreciate the subtle improvements and bug fixes that enhance the overall development experience. Both versions share the same core dependencies, including csstype for CSS type definitions and @vue/compiler-sfc for Single-File Component compilation, ensuring compatibility and a smooth transition for existing projects. The development dependencies, crucial for building and testing the library itself, are also identical, indicating a focus on maintaining stability and a consistent toolchain. One notable distinction lies in the dist object, specifically the unpackedSize, with version 2.7.7 being slightly larger, suggesting potential refinements or additions to the compiled code. The releaseDate also highlights that v2.7.7 came only one day after v2.7.6, indicating a hotfix scenario. Vue 2.7.x continues to offer a reactive, component-oriented view layer ideal for modern web interfaces. Developers already familiar with Vue 2 will find the upgrade seamless, while newcomers can leverage the comprehensive documentation and vibrant community support to build robust and engaging applications. The MIT license ensures flexibility and freedom in utilizing the library for a wide range of projects, both personal and commercial. Choose Vue 2.7.7 for the latest refinements or Vue 2.7.6 for a highly stable platform.
All the vulnerabilities related to the version 2.7.7 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.