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build(deps-dev): bump webpack-dev-server from 5.2.4 to 5.2.6 - #4402

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dependabot/npm_and_yarn/webpack-dev-server-5.2.6

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@dependabot

@dependabot dependabot Bot commented on behalf of github Jul 27, 2026

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Bumps webpack-dev-server from 5.2.4 to 5.2.6.

Release notes

Sourced from webpack-dev-server's releases.

v5.2.6

Patch Changes

  • fix: allow undefined as the Server constructor options argument again (by @​bjohansebas in #5695)

    Restores accepting undefined (defaulting it to {}) for the options argument, so passing a webpack config's optional devServer field type-checks and works as before.

  • Protect the built-in state-changing routes (/webpack-dev-server/invalidate and /webpack-dev-server/open-editor) against cross-site request forgery. Requests are now checked with Sec-Fetch-Site (falling back to an Origin/Host comparison when it is absent), so a cross-site page can no longer trigger a rebuild or open a file in the editor. Same-origin requests, user-initiated navigations, and non-browser clients (e.g. curl) are unaffected. (by @​bjohansebas in #5698)

  • Handle malformed Host and Origin header values gracefully when validating requests. (by @​bjohansebas in #5699)

v5.2.5

Patch Changes

  • Skip the HMR WebSocket path when forwarding upgrade requests to user-defined proxies, so custom proxy WebSocket upgrades are no longer intercepted by the dev server. (by @​bjohansebas in #5680)
Changelog

Sourced from webpack-dev-server's changelog.

5.2.6

Patch Changes

  • fix: allow undefined as the Server constructor options argument again (by @​bjohansebas in #5695)

    Restores accepting undefined (defaulting it to {}) for the options argument, so passing a webpack config's optional devServer field type-checks and works as before.

  • Protect the built-in state-changing routes (/webpack-dev-server/invalidate and /webpack-dev-server/open-editor) against cross-site request forgery. Requests are now checked with Sec-Fetch-Site (falling back to an Origin/Host comparison when it is absent), so a cross-site page can no longer trigger a rebuild or open a file in the editor. Same-origin requests, user-initiated navigations, and non-browser clients (e.g. curl) are unaffected. (by @​bjohansebas in #5698)

  • Handle malformed Host and Origin header values gracefully when validating requests. (by @​bjohansebas in #5699)

5.2.5

Patch Changes

  • Skip the HMR WebSocket path when forwarding upgrade requests to user-defined proxies, so custom proxy WebSocket upgrades are no longer intercepted by the dev server. (by @​bjohansebas in #5680)

All notable changes to this project will be documented in this file. See standard-version for commit guidelines.

Commits
  • 8a37b0e chore(release): new release (#5697)
  • f21ed0f fix: handle malformed Host and Origin headers (#5699)
  • 80cd9ee fix: reject cross-site requests to open-editor and invalidate endpoints (#5698)
  • 308e853 fix: handle undefined options in Server constructor (#5695)
  • 8b2b915 chore: update branch references from v4 to v5 in workflow configuration
  • 870ed22 chore: add v5 branch to release workflow triggers
  • c3ee325 chore(release): new release (#5682)
  • 60173be feat: add changeset validation and release workflow (#5680)
  • 948d5e6 fix(proxy): match the HMR upgrade path exactly like the ws server (#5678)
  • 93e8996 fix: skip HMR websocket path when forwarding upgrades to user-defined proxies...
  • See full diff in compare view
Maintainer changes

This version was pushed to npm by GitHub Actions, a new releaser for webpack-dev-server since your current version.


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Summary by cubic

Upgrade webpack-dev-server to 5.2.6 to improve dev server security and compatibility. No app code changes.

  • Bug Fixes

    • Block CSRF on /webpack-dev-server/invalidate and /webpack-dev-server/open-editor.
    • Restore support for undefined Server options; handle malformed Host/Origin headers.
    • Don’t intercept custom proxy WebSocket upgrades for HMR.
  • Dependencies

    • Bump webpack-dev-server 5.2.4 -> 5.2.6 (transitive: launch-editor 2.14.1, shell-quote 1.10.0).

Written for commit 05ed86d. Summary will update on new commits.

Review in cubic

Bumps [webpack-dev-server](https://github.com/webpack/webpack-dev-server) from 5.2.4 to 5.2.6.
- [Release notes](https://github.com/webpack/webpack-dev-server/releases)
- [Changelog](https://github.com/webpack/webpack-dev-server/blob/v5.2.6/CHANGELOG.md)
- [Commits](webpack/webpack-dev-server@v5.2.4...v5.2.6)

---
updated-dependencies:
- dependency-name: webpack-dev-server
  dependency-version: 5.2.6
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>
Copilot AI review requested due to automatic review settings July 27, 2026 15:19
@dependabot dependabot Bot added dependencies Pull requests that update a dependency file javascript Pull requests that update javascript code labels Jul 27, 2026

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@cla-assistant

cla-assistant Bot commented Jul 27, 2026

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Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
You have signed the CLA already but the status is still pending? Let us recheck it.

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@cla-assistant

cla-assistant Bot commented Jul 27, 2026

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CLA assistant check
Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
You have signed the CLA already but the status is still pending? Let us recheck it.

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Up to standards ✅

🟢 Issues 0 issues

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🟢 Metrics 0 complexity · 0 duplication

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