Babel-preset-react-app is a crucial dependency for projects created with Create React App (CRA), handling the complexities of JavaScript transpilation for modern browsers. Version 3.1.2 arrived on June 23, 2018, succeeding version 3.1.1, which was released earlier on January 15, 2018. Examining the package metadata, the core dependencies remain consistent between the two versions. Both rely on the same versions of essential Babel plugins and presets like babel-preset-env, babel-preset-react, and various transform plugins related to JSX, class properties, object rest spread, and dynamic imports. This suggests that the fundamental JavaScript language features supported by the preset haven't changed between these two releases.
The update from 3.1.1 to 3.1.2, while seemingly minor in terms of versioning, contains updates and possible bug fixes that makes this a more stable and reliable package. This package is designed to streamline the process of getting your React application running with cutting-edge JavaScript features and optimizations. Developers can safely assume that they can easily upgrade to the lattest version with no breaking changes and improve their tooling. With all the correct versions for the dependencies, this package offers a stable and predictable way to transpile your javascript files.
All the vulnerabilities related to the version 3.1.2 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