[dependabot]

Bumps express from 5.2.1 to 5.3.0.

Release notes

Sourced from express's releases.

v5.3.0

Highlights

🐞 Bug fixes

• Fixed HTTP header conflict between Content-Length and Transfer-Encoding in res.send - by @​YuryShkoda in #4893

  Fixed the behavior of res.send() to prevent conflicts between Content-Length and Transfer-Encoding HTTP headers in responses. The Content-Length header in res.send() is now only added when a Transfer-Encoding header is not present, complying with the HTTP specification that states both headers should not coexist in the same response. ETag generation is unaffected by the presence of a Transfer-Encoding header - by @​cuishuang in #7459

• Upgrade qs to ^6.16.0, which fixes CVE-2026-2391 (GHSA-w7fw-mjwx-w883), CVE-2026-82417 (GHSA-4mjr-xmp4-gh2g) and CVE-2026-82562 (GHSA-x5fp-wj9c-mxmx): arrayLimit bypasses in comma parsing and a denial of service via an attacker-controlled isBuffer - by @​davetashner in #7057 and #7478, and @​cyphercodes in #7305

• Upgrade proxy-addr to ^2.0.8, which fixes CVE-2026-90711 - by @​lazerg in #7474

🚀 Improvements

• Allow conditional revalidation for QUERY requests. req.fresh previously only validated freshness for GET and HEAD requests, so QUERY responses never returned 304 despite a matching validator. Since QUERY is a safe, idempotent, and cacheable method that supports conditional requests, it is now included in the freshness check - by @​Cherry in #7366

  // QUERY /reports with If-None-Match: "12345"
  app.query('/reports', (req, res) => {
    res.set('ETag', '"12345"');
    res.send(results); // now responds 304 Not Modified
  });

• Improve HTML structure in res.redirect() responses when HTML format is accepted by adding <!DOCTYPE html>, <title>, and <body> tags for better browser compatibility - by @​Bernice55231 in #5167

• When calling app.render with options set to null, the locals object is handled correctly, preventing unexpected errors and making the method behave the same as when options is omitted or an empty object is passed - by AkaHarshit in #6903

  app.render('index', null, callback); // now works as expected

• Upgrade content-type to ^2.0.0, bringing a faster parser (~1.5x quicker Content-Type parsing/formatting in res.send()) along with a behavior change: res.send() now keeps any existing parameters when adding the charset and no longer throws on a Content-Type that fails to parse. type-is is upgraded to ^2.1.0 as part of the same change - by @​blakeembrey in #7234

  res.set('Content-Type', 'text/plain; foo=bar').send('hey');
  // -> Content-Type: text/plain; foo=bar; charset=utf-8

• The default error handler now logs the full error object instead of only its stack trace, so nested details such as Error.cause and library-specific properties (e.g. Sequelize's parent/original) are no longer swallowed - by @​Nitin-Mohapatra in #6464

• Upgrade content-disposition to ^2.0.1, which changes the Content-Disposition header emitted by res.download(), res.attachment(), and res.sendFile(): file names that are valid HTTP tokens are no longer wrapped in quotes. This is equivalent per RFC 6266, but applications asserting on the exact header bytes should update their expectations - by @​blakeembrey in #7233

  res.attachment('user.html');
  // before -> Content-Disposition: attachment; filename="user.html"
  // after  -> Content-Disposition: attachment; filename=user.html

... (truncated)

Changelog

Sourced from express's changelog.

5.3.0

🐞 Bug fixes

• Fixed HTTP header conflict between Content-Length and Transfer-Encoding in res.send - by @​YuryShkoda in #4893

  Fixed the behavior of res.send() to prevent conflicts between Content-Length and Transfer-Encoding HTTP headers in responses. The Content-Length header in res.send() is now only added when a Transfer-Encoding header is not present, complying with the HTTP specification that states both headers should not coexist in the same response. ETag generation is unaffected by the presence of a Transfer-Encoding header - by @​cuishuang in #7459

• Upgrade qs to ^6.16.0, which fixes CVE-2026-2391 (GHSA-w7fw-mjwx-w883), CVE-2026-82417 (GHSA-4mjr-xmp4-gh2g) and CVE-2026-82562 (GHSA-x5fp-wj9c-mxmx): arrayLimit bypasses in comma parsing and a denial of service via an attacker-controlled isBuffer - by @​davetashner in #7057 and #7478, and @​cyphercodes in #7305

• Upgrade proxy-addr to ^2.0.8, which fixes CVE-2026-90711 - by @​lazerg in #7474

🚀 Improvements

• Allow conditional revalidation for QUERY requests. req.fresh previously only validated freshness for GET and HEAD requests, so QUERY responses never returned 304 despite a matching validator. Since QUERY is a safe, idempotent, and cacheable method that supports conditional requests, it is now included in the freshness check - by @​Cherry in #7366

  // QUERY /reports with If-None-Match: "12345"
  app.query('/reports', (req, res) => {
    res.set('ETag', '"12345"');
    res.send(results); // now responds 304 Not Modified
  });

• Improve HTML structure in res.redirect() responses when HTML format is accepted by adding <!DOCTYPE html>, <title>, and <body> tags for better browser compatibility - by @​Bernice55231 in #5167

• When calling app.render with options set to null, the locals object is handled correctly, preventing unexpected errors and making the method behave the same as when options is omitted or an empty object is passed - by AkaHarshit in #6903

  app.render('index', null, callback); // now works as expected

• Upgrade content-type to ^2.0.0, bringing a faster parser (~1.5x quicker Content-Type parsing/formatting in res.send()) along with a behavior change: res.send() now keeps any existing parameters when adding the charset and no longer throws on a Content-Type that fails to parse. type-is is upgraded to ^2.1.0 as part of the same change - by @​blakeembrey in #7234

  res.set('Content-Type', 'text/plain; foo=bar').send('hey');
  // -> Content-Type: text/plain; foo=bar; charset=utf-8

• The default error handler now logs the full error object instead of only its stack trace, so nested details such as Error.cause and library-specific properties (e.g. Sequelize's parent/original) are no longer swallowed - by @​Nitin-Mohapatra in #6464

• Upgrade content-disposition to ^2.0.1, which changes the Content-Disposition header emitted by res.download(), res.attachment(), and res.sendFile(): file names that are valid HTTP tokens are no longer wrapped in quotes. This is equivalent per RFC 6266, but applications asserting on the exact header bytes should update their expectations - by @​blakeembrey in #7233

  res.attachment('user.html');
  // before -> Content-Disposition: attachment; filename="user.html"
  // after  -> Content-Disposition: attachment; filename=user.html

... (truncated)

Commits

• cf6722b 5.3.0 (#7468)
• 8c2fcfc docs: fix typos and a stale API reference in lib comments (#7512)
• 9efc29e docs: fix pass-through typos (#7509)
• 2717ae3 build(deps): bump the github-actions group with 3 updates (#7499)
• de77771 build(deps-dev): bump hbs from 4.3.0 to 4.3.1 (#7500)
• 9169cbe docs: add missing apostrophe in example (#7483)
• 7ef9844 build(deps-dev): bump morgan from 1.12.0 to 1.12.1 (#7493)
• 3b7e39f deps: bump qs minimum to 6.16.0 (#7478)
• 98bd4cd deps: proxy-addr@^2.0.8 (#7474)
• 9a34acf fix(res.send): preserve ETag generation with Transfer-Encoding (#7459)
• Additional commits viewable in compare view

Maintainer changes

This version was pushed to npm by GitHub Actions, a new releaser for express since your current version.

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)

[davidwkeith]

Automated review of the express 5.2.1 → 5.3.0 bump.

Diff. The change is correct and minimal: packages/server/package.json pins 5.3.0 exactly, as CONTRIBUTING requires, and pnpm-lock.yaml matches. The transitive bumps are qs 6.16.1, proxy-addr 2.0.8, content-type 2.1.0, content-disposition 2.0.1 and range-parser 1.3.0. The qs and proxy-addr bumps carry CVE fixes, so this is worth merging.

Behaviour. I grepped packages/server/src for Content-Disposition, res.redirect, req.fresh, .query( and Content-Type handling. Nothing there depends on the changed behaviour (unquoted token filenames, res.send charset handling, Content-Length vs Transfer-Encoding). I don't expect test changes.

CONTRIBUTING conformance

• Changeset: not needed. @dwk/server is "private": true and ships only as a Docker image, so this is a repo-only change.
• Title: chore(deps): … uses the Dependabot scope. The repo convention is the package name, so chore(server): bump express from 5.2.1 to 5.3.0 would match. The PR is squash-merged, so edit the title at merge time.
• PR body: it is Dependabot's, not .github/PULL_REQUEST_TEMPLATE.md. I'd treat that as acceptable for bot PRs. If you want the template headings (Summary / Packages affected / Checklist), add them by hand before merging.

CI. build-test, integration, release-gate and image were still running when I checked. Please confirm lint, format:check, typecheck, build and test are green before merging. @dwk/server is the only consumer, so a green image build is the main signal.

No blocking issues found.

---

Generated by Claude Code