Babel Preset React App version 3.1.0 represents an incremental update over version 3.0.3, fine-tuning the Babel configuration used by Create React App projects. For developers, the key improvements lie in the updated dependencies, offering enhanced ESNext and React syntax support.
Notably, babel-preset-env jumps from version 1.5.2 to 1.6.1. This upgrade brings the latest ECMAScript standard features and ensures better compatibility with modern JavaScript. Developers benefit from more robust transpilation, handling newer language constructs with improved accuracy and efficiency.
Another significant change is the update of babel-plugin-dynamic-import-node from 1.0.2 to 1.1.0, and babel-plugin-transform-object-rest-spread from 6.23.0 to 6.26.0 enabling better support for dynamic imports in Node.js environments, which is crucial for server-side rendering and code splitting strategies. The update of babel-plugin-transform-regenerator from version 6.24.1 to 6.26.0 provides improved support for async/await functionalities and generators, optimizing the transpiled code for enhanced performance of asynchronous operations.
While other dependencies remain at similar versions, these targeted updates contribute to a smoother development experience. Developers can leverage newer JavaScript features with confidence, knowing that Babel Preset React App 3.1.0 provides a well-configured and up-to-date transpilation pipeline that ensures compatibility across various browsers and environments, without the hassle of manual configuration. These updates ensure compatibility and optimized handling of Javascript and React code.
All the vulnerabilities related to the version 3.1.0 of the package
Babel vulnerable to arbitrary code execution when compiling specifically crafted malicious code
Using Babel to compile code that was specifically crafted by an attacker can lead to arbitrary code execution during compilation, when using plugins that rely on the path.evaluate()or path.evaluateTruthy() internal Babel methods.
Known affected plugins are:
@babel/plugin-transform-runtime@babel/preset-env when using its useBuiltIns option@babel/helper-define-polyfill-provider, such as babel-plugin-polyfill-corejs3, babel-plugin-polyfill-corejs2, babel-plugin-polyfill-es-shims, babel-plugin-polyfill-regeneratorNo other plugins under the @babel/ namespace are impacted, but third-party plugins might be.
Users that only compile trusted code are not impacted.
The vulnerability has been fixed in @babel/traverse@7.23.2.
Babel 6 does not receive security fixes anymore (see Babel's security policy), hence there is no patch planned for babel-traverse@6.
@babel/traverse to v7.23.2 or higher. You can do this by deleting it from your package manager's lockfile and re-installing the dependencies. @babel/core >=7.23.2 will automatically pull in a non-vulnerable version.@babel/traverse and are using one of the affected packages mentioned above, upgrade them to their latest version to avoid triggering the vulnerable code path in affected @babel/traverse versions:
@babel/plugin-transform-runtime v7.23.2@babel/preset-env v7.23.2@babel/helper-define-polyfill-provider v0.4.3babel-plugin-polyfill-corejs2 v0.4.6babel-plugin-polyfill-corejs3 v0.8.5babel-plugin-polyfill-es-shims v0.10.0babel-plugin-polyfill-regenerator v0.5.3