chore(deps): bump qs and express in /server

[dependabot]

Bumps qs to 6.15.2 and updates ancestor dependency express. These dependencies need to be updated together.

Updates qs from 6.14.2 to 6.15.2

Changelog

Sourced from qs's changelog.

6.15.2

• [Fix] stringify: skip null/undefined entries in arrayFormat: 'comma' + encodeValuesOnly instead of crashing in encoder
• [Fix] stringify: use configured delimiter after charsetSentinel (#555)
• [Fix] stringify: apply formatter to encoded key under strictNullHandling (#554)
• [Fix] stringify: skip null/undefined filter-array entries instead of crashing in encoder (#551)
• [Fix] parse: handle nested bracket groups and add regression tests (#530)
• [readme] fix grammar (#550)
• [Dev Deps] update @ljharb/eslint-config
• [Tests] add regression tests for keys containing percent-encoded bracket text

6.15.1

• [Fix] parse: parameterLimit: Infinity with throwOnLimitExceeded: true silently drops all parameters
• [Deps] update @ljharb/eslint-config
• [Dev Deps] update @ljharb/eslint-config, iconv-lite
• [Tests] increase coverage

6.15.0

• [New] parse: add strictMerge option to wrap object/primitive conflicts in an array (#425, #122)
• [Fix] duplicates option should not apply to bracket notation keys (#514)

Commits

• 9aca407 v6.15.2
• 5e33d33 [Dev Deps] update @ljharb/eslint-config
• 21f80b3 [Fix] stringify: skip null/undefined entries in arrayFormat: 'comma' + `e...
• a0a81ea [Fix] stringify: use configured delimiter after charsetSentinel
• e3062f7 [Fix] stringify: apply formatter to encoded key under strictNullHandling
• 0c180a4 [Fix] stringify: skip null/undefined filter-array entries instead of crashi...
• 3a8b94a [Tests] add regression tests for keys containing percent-encoded bracket text
• 96755ab [readme] fix grammar
• a419ce5 [Fix] parse: handle nested bracket groups and add regression tests
• 3f5e1c5 v6.15.1
• Additional commits viewable in compare view

Updates express from 4.22.1 to 4.22.2

Release notes

Sourced from express's releases.

v4.22.2

What's Changed

• fix: restore >20 array parsing for req.query repeated keys (8d09bfe6)
  • This also unifies array-cap behavior across notations. Indexed notation (a[0]=...) was historically capped at qs's default arrayLimit of 20 even in older qs versions; after this change it also allows up to 1000 items.
• deps: qs@~6.15.1
• deps: body-parser@~1.20.5

New Contributors

• @​suuuuuuminnnnnn made their first contribution in expressjs/express#7021
• @​SAY-5 made their first contribution in expressjs/express#7181

Full Changelog: expressjs/express@v4.22.1...v4.22.2

Changelog

Sourced from express's changelog.

4.22.2 / 2026-05-011

• fix: restore >20 array parsing for req.query repeated keys (8d09bfe6)
  • This also unifies array-cap behavior across notations. Indexed notation (a[0]=...) was historically capped at qs's default arrayLimit of 20 even in older qs versions; after this change it also allows up to 1000 items.
• deps: qs@~6.15.1
• deps: body-parser@~1.20.5

Commits

• df0abc9 4.22.2
• 836d366 4.x update qs to 6.15.1, body-parser 1.20.5 (#7224)
• 8d09bfe fix: restore array parsing for req.query repeated keys (#7181)
• d39e8ad deps: body-parser@~1.20.4 (#7021)
• efe85d9 deps: qs@^6.14.1 (#6972)
• f62378e 📝 add note to history
• See full diff in compare view

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PR Review

• Read changed files and gather context
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This is a routine dependency bump from Dependabot. Here's a breakdown of the changes:

What Changed

Package	Before	After	Type
express	4.22.1 → (package.json: ^4.21.2)	4.22.2	Bug fix
qs	6.14.2	6.15.2	Bug fixes
body-parser	1.20.4	1.20.5	Indirect (pulled in by express)

Change Assessment

qs 6.14.2 → 6.15.2 — Pure bug fixes, no breaking changes:

• Fixes crashes in stringify when null/undefined entries appear with arrayFormat: 'comma' + encodeValuesOnly
• Fixes crash with null/undefined filter-array entries in stringify
• Fixes delimiter usage after charsetSentinel
• Fixes formatter application under strictNullHandling
• Fixes nested bracket group parsing

express 4.22.1 → 4.22.2 — Bug fix worth noting:

• Restores >20 array parsing for req.query repeated keys — this was a regression introduced in an earlier version. If your app passes more than 20 repeated query keys (e.g. ?id=1&id=2&...&id=21), this fix restores correct behavior.
• Unifies array-cap behavior: indexed notation (a[0]=...) is now also capped at 1000 (previously 20). This is a behavioral change but restores expected behavior.

Lockfile Integrity

The package-lock.json changes look correct — all three packages have updated version, resolved, and integrity fields consistent with the version bumps. The qs range in both body-parser and express has been updated from ~6.14.0 to ~6.15.1 to match.

Verdict

Looks good to merge. All changes are bug fixes with no breaking changes. The lockfile is consistent with package.json. No security vulnerabilities are directly addressed here, but the fixes improve correctness and stability of query string parsing.