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@renovate renovate bot commented Apr 15, 2025

This PR contains the following updates:

Package Change Age Adoption Passing Confidence
@babel/runtime (source) 7.26.0 -> 7.26.10 age adoption passing confidence

GitHub Vulnerability Alerts

CVE-2025-27789

Impact

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:

  • You use Babel to compile regular expression named capturing groups
  • You use the .replace method on a regular expression that contains named capturing groups
  • Your code uses untrusted strings as the second argument of .replace

If you are using @babel/preset-env with the targets option, the transform that injects the vulnerable code is automatically enabled if:

  • you use duplicated named capturing groups, and target any browser older than Chrome/Edge 126, Opera 112, Firefox 129, Safari 17.4, or Node.js 23
  • you use any named capturing groups, and target any browser older than Chrome 64, Opera 71, Edge 79, Firefox 78, Safari 11.1, or Node.js 10

You can verify what transforms @babel/preset-env is using by enabling the debug option.

Patches

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.

Workarounds

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).

References

This vulnerability was reported and fixed in https://github.com/babel/babel/pull/17173.


Release Notes

babel/babel (@​babel/runtime)

v7.26.10

Compare Source

👓 Spec Compliance
🐛 Bug Fix
💅 Polish
🏠 Internal

v7.26.9

Compare Source

🐛 Bug Fix
🏠 Internal

v7.26.7

Compare Source

🐛 Bug Fix

Configuration

📅 Schedule: Branch creation - "" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.


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This PR was generated by Mend Renovate. View the repository job log.

@renovate renovate bot added the dependencies This pull request updates dependency files label Apr 15, 2025
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Pull Request Test Coverage Report for Build 14473333234

Details

  • 0 of 0 changed or added relevant lines in 0 files are covered.
  • No unchanged relevant lines lost coverage.
  • Overall coverage remained the same at 31.108%

Totals Coverage Status
Change from base Build 14473313271: 0.0%
Covered Lines: 4892
Relevant Lines: 14835

💛 - Coveralls

@RichDom2185 RichDom2185 merged commit 1ccd0d2 into master Apr 16, 2025
8 checks passed
@RichDom2185 RichDom2185 deleted the renovate/npm-babel-runtime-vulnerability branch April 16, 2025 13:50
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