build(deps-dev): bump lodash from 4.17.23 to 4.18.1 in /lightning/web

[dependabot]

Bumps lodash from 4.17.23 to 4.18.1.

Release notes

Sourced from lodash's releases.

4.18.1

Bugs

Fixes a ReferenceError issue in lodash lodash-es lodash-amd and lodash.template when using the template and fromPairs functions from the modular builds. See lodash/lodash#6167

These defects were related to how lodash distributions are built from the main branch using https://github.com/lodash-archive/lodash-cli. When internal dependencies change inside lodash functions, equivalent updates need to be made to a mapping in the lodash-cli. (hey, it was ahead of its time once upon a time!). We know this, but we missed it in the last release. It's the kind of thing that passes in CI, but fails bc the build is not the same thing you tested.

There is no diff on main for this, but you can see the diffs for each of the npm packages on their respective branches:

• lodash: lodash/lodash@4.18.0-npm...4.18.1-npm
• lodash-es: lodash/lodash@4.18.0-es...4.18.1-es
• lodash-amd: lodash/lodash@4.18.0-amd...4.18.1-amd
• lodash.templatelodash/lodash@4.18.0-npm-packages...4.18.1-npm-packages

4.18.0

v4.18.0

Full Changelog: lodash/lodash@4.17.23...4.18.0

Security

_.unset / _.omit: Fixed prototype pollution via constructor/prototype path traversal (GHSA-f23m-r3pf-42rh, fe8d32e). Previously, array-wrapped path segments and primitive roots could bypass the existing guards, allowing deletion of properties from built-in prototypes. Now constructor and prototype are blocked unconditionally as non-terminal path keys, matching baseSet. Calls that previously returned true and deleted the property now return false and leave the target untouched.

_.template: Fixed code injection via imports keys (GHSA-r5fr-rjxr-66jc, CVE-2026-4800, 879aaa9). Fixes an incomplete patch for CVE-2021-23337. The variable option was validated against reForbiddenIdentifierChars but importsKeys was left unguarded, allowing code injection via the same Function() constructor sink. imports keys containing forbidden identifier characters now throw "Invalid imports option passed into _.template".

Docs

• Add security notice for _.template in threat model and API docs (#6099)
• Document lower > upper behavior in _.random (#6115)
• Fix quotes in _.compact jsdoc (#6090)

lodash.* modular packages

Diff

We have also regenerated and published a select number of the lodash.* modular packages.

These modular packages had fallen out of sync significantly from the minor/patch updates to lodash. Specifically, we have brought the following packages up to parity w/ the latest lodash release because they have had CVEs on them in the past:

• lodash.orderby
• lodash.tonumber
• lodash.trim
• lodash.trimend
• lodash.sortedindexby
• lodash.zipobjectdeep
• lodash.unset
• lodash.omit
• lodash.template

Commits

• cb0b9b9 release(patch): bump main to 4.18.1 (#6177)
• 75535f5 chore: prune stale advisory refs (#6170)
• 62e91bc docs: remove n_ Node.js < 6 REPL note from README (#6165)
• 59be2de release(minor): bump to 4.18.0 (#6161)
• af63457 fix: broken tests for _.template 879aaa9
• 1073a76 fix: linting issues
• 879aaa9 fix: validate imports keys in _.template
• fe8d32e fix: block prototype pollution in baseUnset via constructor/prototype traversal
• 18ba0a3 refactor(fromPairs): use baseAssignValue for consistent assignment (#6153)
• b819080 ci: add dist sync validation workflow (#6137)
• Additional commits viewable in compare view

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What problem does this PR solve?

Issue Number: close None

Problem Summary:

What changed and how does it work?

Check List

Tests

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• Integration test
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  • I checked and no code files have been changed.

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
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• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

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[pantheon-ai]

Review Complete

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[ti-chi-bot]

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[pantheon-ai]

✅ Code looks good. No issues found.

[hawkingrei]

/ok-to-test

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.3627%. Comparing base (3dfa425) to head (448f4c0).
⚠️ Report is 15 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #67555        +/-   ##
================================================
+ Coverage   77.6503%   78.3627%   +0.7124%     
================================================
  Files          1961       1972        +11     
  Lines        543736     549821      +6085     
================================================
+ Hits         422213     430855      +8642     
+ Misses       120713     118530      -2183     
+ Partials        810        436       -374     

Flag	Coverage Δ
integration	43.7553% <ø> (+9.4247%)	⬆️
unit	76.8953% <ø> (+0.5107%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
dumpling	61.5065% <ø> (ø)
parser	∅ <ø> (∅)
br	50.6073% <ø> (-9.7306%)	⬇️

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: D3Hunter, hawkingrei

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2026-04-04 01:59:38.63786433 +0000 UTC m=+575983.843224377: ☑️ agreed by hawkingrei.
• 2026-04-07 14:02:36.387164448 +0000 UTC m=+878561.592524506: ☑️ agreed by D3Hunter.

[hawkingrei]

/test fast_test_tiprow

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/retest

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@dependabot[bot]: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

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