Babel Preset Env streamlines JavaScript Transformations, optimizing code for diverse environments. Examining versions 1.0.2 and 1.0.1 reveals subtle yet crucial improvements for developers seeking compatibility across browsers and Node.js. Both versions share identical core dependencies like "babel-plugin-transform-es2015-arrow-functions" and "browserslist," ensuring ES2015+ features are correctly transpiled, managing arrow functions, block scoping, classes, and more. They also contain same devDependencies like "babel-cli", "eslint", and "mocha" for development and testing purposes.
The primary difference lies in the release date, with version 1.0.2 released approximately an hour later than 1.0.1. While the change log is not provided in the dataset and it is impossible to know the exact updates or bug fixes, the update likely addresses minor bugs, documentation updates, or performance enhancements discovered shortly after the initial 1.0.1 release.
For developers considering Babel Preset Env, these versions offer a robust foundation. Version 1.0.2 is generally preferred due to its potential inclusion of immediate fixes, ensuring a slightly more stable experience. In practice, update to the latest major and minor version since these versions are quite old. Keep in mind that a well-configured .browserslistrc file is vital. It allows developers to designate targeted browsers defining the extent of necessary transformations, optimizing bundle sizes and improving application performance.
All the vulnerabilities related to the version 1.0.2 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