Babel-preset-env is a powerful tool designed to simplify Babel configuration for developers. It intelligently determines the necessary Babel plugins and transforms based on the target environment, reducing boilerplate and ensuring compatibility across different browsers and JavaScript runtimes. Examining versions 0.0.5 and 0.0.6, we see a focus on stability and refinement, with minimal code changes between these releases.
Both versions include a comprehensive set of dependencies, encompassing essential Babel plugins for ES2015 transformations, syntax support, and asynchronous operations. These plugins cover features like arrow functions, block scoping, classes, destructuring, and more, enabling developers to write modern JavaScript without worrying about browser compatibility. The inclusion of "browserslist" allows control over the target environments, further customizing the transformation process.
The "devDependencies" section highlights tools for development, testing, and code quality. Packages like "eslint" and related plugins ensure code consistency, while "mocha" provides a framework for testing. "compat-table" is used for checking JavaScript compatibility.
The difference relies on the release date, as version 0.0.6 was released approximately 3 minutes after version 0.0.5. So, it can be assumed that version 0.0.6 is incorporating some bug fixes or some minor code changes. For developers, this indicates a commitment to maintaining and improving the package, even in its early stages. Upgrading from 0.0.5 to 0.0.6 is advisable to benefit from any potential bug fixes, it might also be useful to check the changelog to acknowledge the changes between this 2 versions.
All the vulnerabilities related to the version 0.0.6 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