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fix(bugfix): bound check before array access by babel-bot · Pull Request #18457 · babel/babel · GitHub
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fix(bugfix): bound check before array access - #18457

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nicolo-ribaudo merged 1 commit into
7.xfrom
automation/backport-18213
Oct 30, 2026
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nicolo-ribaudo merged 1 commit into
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Backport of #18213 to 7.x

Cherry-picked commits:

  • c095ce1 → fix(bugfix): bound check before array access

Conflicts: None.

Checks: build and lint passed. Tests: 3 suites failed (6 tests) in babel-core (resolution.js, config-chain.js, async.js). They fail on the .mjs config / package.json#exports tests, which expect an error or ESM loading. The environment runs Node v27 alpha, which supports require(esm) and changes that behavior. The failures are unrelated to this backport (it only touches util.ts and a test in the same package), so I did not fix them.

Generated by 🔙 Backport to 7.x for #18213 · copilot · auto · 8.41 AIC · ⌖ 0.582 AIC · ⊞ 9.1K · ◷

@babel-bot babel-bot added 7.x: backport PR: Bug Fix 🐛 A type of pull request used for our changelog categories labels Oct 29, 2026
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babel-bot commented Oct 29, 2026 •

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Build successful! You can test your changes in the REPL here: https://babeljs.io/repl/build/62779

@nicolo-ribaudo
nicolo-ribaudo force-pushed the automation/backport-18213 branch from 4b50351 to af7b211 Compare October 30, 2026 13:40
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commit: ca86f54

@nicolo-ribaudo
nicolo-ribaudo force-pushed the automation/backport-18213 branch from af7b211 to ca86f54 Compare October 30, 2026 15:38
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nicolo-ribaudo added this pull request to the merge queue Oct 30, 2026
Merged via the queue into 7.x with commit 1dbd7b9 Oct 30, 2026
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@nicolo-ribaudo
nicolo-ribaudo deleted the automation/backport-18213 branch October 30, 2026 18:01
markharding pushed a commit to futo-org/Harbor that referenced this pull request Nov 10, 2026
This PR contains the following updates:

| Package | Change | [Age](https://docs.renovatebot.com/merge-confidence/) | [Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
| [@babel/core](https://babel.dev/docs/en/next/babel-core) ([source](https://github.com/babel/babel/tree/HEAD/packages/babel-core)) | [`7.29.7` → `7.29.13`](https://renovatebot.com/diffs/npm/@babel%2fcore/7.29.7/7.29.13) | ![age](https://developer.mend.io/api/mc/badges/age/npm/@babel%2fcore/7.29.13?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@babel%2fcore/7.29.7/7.29.13?slim=true) |
| [@babel/runtime](https://babel.dev/docs/en/next/babel-runtime) ([source](https://github.com/babel/babel/tree/HEAD/packages/babel-runtime)) | [`7.29.10` → `7.29.13`](https://renovatebot.com/diffs/npm/@babel%2fruntime/7.29.10/7.29.13) | ![age](https://developer.mend.io/api/mc/badges/age/npm/@babel%2fruntime/7.29.13?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@babel%2fruntime/7.29.10/7.29.13?slim=true) |

---

### Release Notes

<details>
<summary>babel/babel (@&#8203;babel/core)</summary>

### [`v7.29.13`](https://github.com/babel/babel/releases/tag/v7.29.13)

[Compare Source](babel/babel@v7.29.7...v7.29.13)

##### v7.29.13 (2026-11-04)

##### 🐛 Bug Fix

- `babel-generator`, `babel-parser`
  - [#&#8203;18522](babel/babel#18522) fix(parser): start decorated object members at their first decorator ([@&#8203;babel-bot](https://github.com/babel-bot))
- `babel-parser`
  - [#&#8203;18520](babel/babel#18520) fix(parser): allow TS imports to define exports declared before them ([@&#8203;babel-bot](https://github.com/babel-bot))
  - [#&#8203;18485](babel/babel#18485) fix(parser): allow lone `yield` before `in` in an Annex B for-in init ([@&#8203;babel-bot](https://github.com/babel-bot))
  - [#&#8203;18483](babel/babel#18483) fix(parser): respect unicode escape in `isUnparsedContextual` ([@&#8203;babel-bot](https://github.com/babel-bot))
  - [#&#8203;18452](babel/babel#18452) fix(parser): remove non-decimal prefix from bigint ([@&#8203;babel-bot](https://github.com/babel-bot))
  - [#&#8203;18449](babel/babel#18449) fix(parser): allow await as a function expression name inside async arrow ([@&#8203;babel-bot](https://github.com/babel-bot))
  - [#&#8203;18453](babel/babel#18453) Disallow new import prop access ([@&#8203;babel-bot](https://github.com/babel-bot))
  - [#&#8203;18450](babel/babel#18450) Improve F# pipeline direct body check ([@&#8203;babel-bot](https://github.com/babel-bot))
  - [#&#8203;18446](babel/babel#18446) fix(parser): set phase: null for non-deferred imports with deferredImportEvaluation ([#&#8203;18313](babel/babel#18313)) ([@&#8203;babel-bot](https://github.com/babel-bot))
  - [#&#8203;18448](babel/babel#18448) Fix TypeScript parser failing on async calls in ternary consequent ([@&#8203;babel-bot](https://github.com/babel-bot))
- `babel-generator`
  - [#&#8203;18521](babel/babel#18521) fix(generator): print override modifier of TSParameterProperty ([@&#8203;babel-bot](https://github.com/babel-bot))
  - [#&#8203;18509](babel/babel#18509) fix(generator): do not apply `jsesc` number radix to non-integer literals ([@&#8203;babel-bot](https://github.com/babel-bot))
  - [#&#8203;18500](babel/babel#18500) fix(generator): escape `of` binding of a using declaration in for-of head ([@&#8203;babel-bot](https://github.com/babel-bot))
  - [#&#8203;18461](babel/babel#18461) fix: invalid `minified: true` output for new expression ([@&#8203;babel-bot](https://github.com/babel-bot))
  - [#&#8203;18476](babel/babel#18476) fix: preserve trailing comma in optional call args ([@&#8203;babel-bot](https://github.com/babel-bot))
  - [#&#8203;18456](babel/babel#18456) fix(generator): keep parens for ?. chain in tag ([@&#8203;babel-bot](https://github.com/babel-bot))
  - [#&#8203;18454](babel/babel#18454) fix(generator): preserve type modifier in TSImportEqualsDeclaration ([@&#8203;babel-bot](https://github.com/babel-bot))
- `babel-plugin-transform-block-scoping`
  - [#&#8203;18518](babel/babel#18518) Fix initialization of nested for loop head declarations ([@&#8203;babel-bot](https://github.com/babel-bot))
  - [#&#8203;18465](babel/babel#18465) fix: improve for loop closure environment check ([@&#8203;babel-bot](https://github.com/babel-bot))
  - [#&#8203;18464](babel/babel#18464) fix: assign closure body after handling return ([@&#8203;babel-bot](https://github.com/babel-bot))
- `babel-helper-module-transforms`, `babel-plugin-transform-modules-commonjs`
  - [#&#8203;18499](babel/babel#18499) fix: commonjs namespace re-export with a string export name ([@&#8203;babel-bot](https://github.com/babel-bot))
- `babel-helper-skip-transparent-expression-wrappers`, `babel-plugin-transform-optional-chaining`
  - [#&#8203;18482](babel/babel#18482) Fix optional call losing the receiver through a TS instantiation expression ([@&#8203;babel-bot](https://github.com/babel-bot))
- `babel-plugin-proposal-partial-application`
  - [#&#8203;18479](babel/babel#18479) fix(partial-app): support super method call ([@&#8203;babel-bot](https://github.com/babel-bot))
- `babel-register`
  - [#&#8203;18481](babel/babel#18481) fix(register): skip hook for ignored files ([@&#8203;babel-bot](https://github.com/babel-bot))
- `babel-helper-create-class-features-plugin`, `babel-plugin-transform-private-property-in-object`
  - [#&#8203;18462](babel/babel#18462) Return false for `#x in` on static private fields before initialization ([@&#8203;babel-bot](https://github.com/babel-bot))
- `babel-traverse`
  - [#&#8203;18480](babel/babel#18480) fix(babel-traverse): check variable shadowing for global object callees ([@&#8203;babel-bot](https://github.com/babel-bot))
- `babel-helper-create-class-features-plugin`, `babel-plugin-proposal-decorators`
  - [#&#8203;18478](babel/babel#18478) Fix decorators interaction with abstract/declare fields ([@&#8203;babel-bot](https://github.com/babel-bot))
- `babel-core`
  - [#&#8203;18463](babel/babel#18463) fix(core): createConfigItem allows cb as 2nd arg ([@&#8203;babel-bot](https://github.com/babel-bot))
- `babel-plugin-bugfix-safari-rest-destructuring-rhs-array`
  - [#&#8203;18457](babel/babel#18457) fix(bugfix): bound check before array access ([@&#8203;babel-bot](https://github.com/babel-bot))
- Other
  - [#&#8203;18459](babel/babel#18459) Fix eslint-parser AST definition of AccessorProperty ([@&#8203;babel-bot](https://github.com/babel-bot))
- `babel-plugin-transform-destructuring`
  - [#&#8203;18460](babel/babel#18460) fix: only collapse the empty-object check when it targets the declared binding ([@&#8203;babel-bot](https://github.com/babel-bot))
- `babel-helpers`, `babel-plugin-transform-async-generator-functions`, `babel-runtime-corejs3`
  - [#&#8203;18458](babel/babel#18458) Fix `asyncIterator` helper forwarding `.throw()` to `.return()` ([@&#8203;babel-bot](https://github.com/babel-bot))
- `babel-plugin-transform-for-of`
  - [#&#8203;18455](babel/babel#18455) Skip `for await` in `transform-for-of` ([@&#8203;babel-bot](https://github.com/babel-bot))
- `babel-helper-string-parser`, `babel-parser`
  - [#&#8203;18447](babel/babel#18447) fix: polish error message for invalid binary 0b19 ([@&#8203;babel-bot](https://github.com/babel-bot))

##### Committers: 1

- Babel Bot ([@&#8203;babel-bot](https://github.com/babel-bot))

</details>

---

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<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0NC4yMDYuMiIsInVwZGF0ZWRJblZlciI6IjQ0LjIwNi4yIiwidGFyZ2V0QnJhbmNoIjoiZGV2ZWxvcCIsImxhYmVscyI6WyJkZXBlbmRlbmNpZXMiLCJyZW5vdmF0ZSJdfQ==-->

Reviewed-on: https://code.futo.org/harbor/harbor/pulls/2245
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