@babel/runtime version 7.22.3 is a minor release following 7.22.0, both providing Babel's modular runtime helpers essential for running transformed JavaScript code. Both versions share the same core description, dependencies on regenerator-runtime (version ^0.13.11), MIT license, and repository details within the Babel project. Developed by the Babel Team, these packages ensure compatibility and proper execution of your code after Babel's transformations.
The key differences lie in the build specifics and timing. Version 7.22.3 was released on May 27, 2023, at 10:11:03.463Z, slightly later than version 7.22.0, which was released on May 26, 2023, at 13:45:18.773Z. The number of files within the package differs slightly (7.22.3 has 211 files while 7.22.0 has 212) and the unpacked size is also marginally different (281898 vs 281918), suggesting minor changes in the included files, potentially bug fixes, optimizations, or documentation updates.
For developers, these versions of @babel/runtime guarantee smooth execution of Babel-transformed code. While 7.22.3 is a more recent release, the incremental changes suggest it primarily contains minor enhancements. For those already using 7.22.0, upgrading to 7.22.3 is recommended to benefit from the latest refinements. New projects should default to the latest stable version, 7.22.3, to ensure optimal performance and compatibility. Always consult the Babel changelog for detailed specifics on bug fixes and feature updates included in each release.
All the vulnerabilities related to the version 7.22.3 of the package
Babel has inefficient RegExp complexity in generated code with .replace when transpiling named capturing groups
When using Babel to compile regular expression named capturing groups, Babel will generate a polyfill for the .replace method that has quadratic complexity on some specific replacement pattern strings (i.e. the second argument passed to .replace).
Your generated code is vulnerable if all the following conditions are true:
.replace method on a regular expression that contains named capturing groups.replaceIf you are using @babel/preset-env with the targets option, the transform that injects the vulnerable code is automatically enabled if:
You can verify what transforms @babel/preset-env is using by enabling the debug option.
This problem has been fixed in @babel/helpers and @babel/runtime 7.26.10 and 8.0.0-alpha.17, please upgrade. It's likely that you do not directly depend on @babel/helpers, and instead you depend on @babel/core (which itself depends on @babel/helpers). Upgrading to @babel/core 7.26.10 is not required, but it guarantees that you are on a new enough @babel/helpers version.
Please note that just updating your Babel dependencies is not enough: you will also need to re-compile your code.
If you are passing user-provided strings as the second argument of .replace on regular expressions that contain named capturing groups, validate the input and make sure it does not contain the substring $< if it's then not followed by > (possibly with other characters in between).
This vulnerability was reported and fixed in https://github.com/babel/babel/pull/17173.