feat: Update @babel/runtime-corejs2 7.26.9 → 7.26.10 (patch)

[depfu]

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🚨 Your current dependencies have known security vulnerabilities 🚨

This dependency update fixes known security vulnerabilities. Please see the details below and assess their impact carefully. We recommend to merge and deploy this as soon as possible!

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Here is everything you need to know about this update. Please take a good look at what changed and the test results before merging this pull request.

What changed?

✳️ @​babel/runtime-corejs2 (7.26.9 → 7.26.10) · Repo · Changelog

Security Advisories 🚨

🚨 Babel has inefficient RexExp complexity in generated code with .replace when transpiling named capturing groups

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 or
• 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 #17173.

Commits

See the full diff on Github. The new version differs by 21 commits:

• v7.26.10
• Fix processing of replacement pattern with named capture groups (#17173)
• Update test262 (#17165)
• Fix: always initialize ExportDeclaration attributes (#17164)
• Left-value parsing cleanup (#17160)
• Avoid warnings when re-bundling @babel/standalone with webpack (#17158)
• fix: "Map maximum size exceeded" in deepClone (#17142)
• Disallow decorator in array pattern (#17159)
• Update test262 (#17157)
• fix(typescript): disallow TSInstantiationExpression in LHS (#17154)
• fix: Should not evaluate vars in child scope (#17151)
• fix: Correctly generate `abstract override` (#17153)
• [Babel 8] Parse TSHeritageBase.expression as an expression (#17139)
• Eslint parser cleanup (#17144)
• Fix source type detection when parsing TypeScript (#17107)
• Update test262 (#17143)
• Update dependency babel-plugin-polyfill-corejs3 to ^0.11.0 (#17138)
• Use Babel 8.0.0-alpha.16 (#17134)
• Add v8.0.0-alpha.16 to .github/CHANGELOG-v8.md [skip ci]
• Bump Babel 8 version to 8.0.0-alpha.16
• Add v7.26.9 to CHANGELOG.md [skip ci]

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