Babel preset stage-1 version 6.0.14 is a specific iteration of a collection of Babel plugins designed to enable experimental ECMAScript features that are in stage 1 of the TC39 standardization process. This means the features included are under active consideration for inclusion in future JavaScript standards, but their specifications may still undergo significant changes.
This preset provides developers with the ability to experiment with these cutting-edge language features in their projects, giving them a head-start in adopting new functionalities. Specifically, version 6.0.14 bundles together several transform plugins including babel-plugin-transform-class-constructor-call, babel-plugin-transform-class-properties, babel-plugin-transform-decorators, and babel-plugin-transform-export-extensions. These plugins enable the use of class constructor calls, class properties, decorators and new export syntax in your JavaScript code. It also depends on babel-preset-stage-2, illustrating a progressive inclusion of features at different stages of the ECMAScript proposal pipeline.
The package is licensed under MIT, offering developers broad usage rights, and is maintained as part of the Babel project. Sebastian McKenzie is listed as the author. Developers using this package should be aware that because it targets stage-1 features, the syntax and behavior of the included features may change in future versions of Babel or in the ECMAScript standard itself, making it essential to stay updated with corresponding changes and use the features with flexibility in mind.
Because information about the previous stable version is unavailable, a specific comparison contrasting the changes and improvements between the two versions is not possible. However it's very important for developers to keep track of changes in dependencies and features when upgrading between versions.
All the vulnerabilities related to the version 6.0.14 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