@babel/runtime version 7.13.10 is a minor update to Babel's modular runtime helpers, building upon version 7.13.9. Both versions, essential for running transformed Babel code in various JavaScript environments, share the same core functionality and dependency on regenerator-runtime for async/await support. The key difference lies in internal improvements and potentially bug fixes. Version 7.13.10 includes 14 more files than the previous stable version with a difference of approximately 8KB in unpacked size, suggesting added or modified helper functions or associated resources.
For developers using @babel/runtime, this update likely focuses on enhanced stability and edge-case handling. While the core APIs remain consistent, upgrading to 7.13.10 is recommended to leverage these refinements and ensure compatibility with the latest Babel transformations. Developers should consult Babel's changelog for detailed specifics on bug fixes. The library, licensed under MIT, emphasizes developer freedom and remains a vital component for projects utilizing modern JavaScript syntax requiring broader browser support. Always consider updating to the latest stable version to benefit from the newest features, optimizations, and security enhancements integrated within the Babel ecosystem.
All the vulnerabilities related to the version 7.13.10 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.