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🚨 [security] Update express 5.1.0 → 5.2.1 (minor)#431

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🚨 [security] Update express 5.1.0 → 5.2.1 (minor)#431
depfu[bot] wants to merge 1 commit intonextfrom
depfu/update/npm/express-5.2.1

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@depfu depfu Bot commented Dec 1, 2025

🚨 Your current dependencies have known security vulnerabilities 🚨

This dependency update fixes known security vulnerabilities. Please see the details below and assess their impact carefully. We recommend to merge and deploy this as soon as possible!

Here is everything you need to know about this upgrade. Please take a good look at what changed and the test results before merging this pull request.

What changed?

✳️ express (5.1.0 → 5.2.1) · Repo · Changelog

Security Advisories 🚨

🚨 express improperly controls modification of query properties

Impact

when using the extended query parser in express ('query parser': 'extended'), the request.query object inherits all object prototype properties, but these properties can be overwritten by query string parameter keys that match the property names

Important

the extended query parser is the default in express 4; this was changed in express 5 which by default uses the simple query parser

Patches

the issue has been patched to ensure request.query is a plain object so request.query no longer has object prototype properties. this brings the default behavior of extended query parsing in line with express's default simple query parser

Workaround

this only impacts users using extended query parsing ('query parser': 'extended'), which is the default in express 4, but not express 5. all users are encouraged to upgrade to the patched versions, but can otherwise work around this issue:

provide qs directly and specify plainObjects: true 

app.set('query parser',
  function (str) {
    return qs.parse(str, {
      plainObjects: true
  });
});
Release Notes

5.2.0

Important: Security

What's Changed

New Contributors

Full Changelog: v5.1.0...v5.2.0

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by 55 commits:

↗️ body-parser (indirect, 2.2.0 → 2.2.1) · Repo · Changelog

Security Advisories 🚨

🚨 body-parser is vulnerable to denial of service when url encoding is used

Impact

body-parser 2.2.0 is vulnerable to denial of service due to inefficient handling of URL-encoded bodies with very large numbers of parameters. An attacker can send payloads containing thousands of parameters within the default 100KB request size limit, causing elevated CPU and memory usage. This can lead to service slowdown or partial outages under sustained malicious traffic.

Patches

This issue is addressed in version 2.2.1.

Release Notes

2.2.1

Important: Security

What's Changed

New Contributors

Full Changelog: v2.2.0...v2.2.1

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by 48 commits:

↗️ raw-body (indirect, 3.0.0 → 3.0.2) · Repo · Changelog

Release Notes

3.0.2

What's Changed

  • docs: enhance security reporting and disclosure procedures by @bjohansebas in #101

  • ci: add workflows for CodeQL analysis and Scorecard security checks, update dependabot configuration and Node.js versions by @bjohansebas in #102

  • deps: use tilde notation for dependencies by @Phillip9587 in #120

  • chore: remove history.md and security.md from being packaged on publish by @bjohansebas in #122

  • build(deps): bump github/codeql-action from 3.30.5 to 4.31.0 by @dependabot[bot] in #105

  • build(deps): bump actions/checkout from 4 to 5 by @dependabot[bot] in #107

  • build(deps): bump actions/upload-artifact from 4 to 5 by @dependabot[bot] in #110

  • chore: use neostandard by @bjohansebas in #116

  • build(deps): bump actions/download-artifact from 4 to 6 by @dependabot[bot] in #108

  • build(deps): bump actions/setup-node from 4 to 6 by @dependabot[bot] in #118

  • build(deps): bump actions/checkout from 4 to 5 by @dependabot[bot] in #119

  • build(deps): bump github/codeql-action from 4.31.0 to 4.31.2 by @dependabot[bot] in #117

  • release: 3.0.2 by @bjohansebas in #123

New Contributors

Full Changelog: v3.0.1...v3.0.2

3.0.1

What's Changed

New Contributors

Full Changelog: v3.0.0...v3.0.1

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by 17 commits:

🆕 iconv-lite (added, 0.7.0)

🆕 http-errors (added, 2.0.1)

🆕 statuses (added, 2.0.2)

Depfu Status

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@depfu depfu Bot added the depfu label Dec 1, 2025
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coveralls commented Dec 1, 2025

Coverage Status

coverage: 69.389% (+0.1%) from 69.242%
when pulling e8b0829 on depfu/update/npm/express-5.2.1
into c9be949 on next.

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