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fix(deps): update dependency express [security] - #11223

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fix(deps): update dependency express [security]#11223
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renovate/npm-express-vulnerability

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@renovate renovate Bot commented Aug 1, 2026

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This PR contains the following updates:

Package Change Age Confidence
express (source) 4.18.24.20.0 age confidence
express (source) 4.22.14.22.2 age confidence
express (source) 4.17.14.20.0 age confidence

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Some dependencies could not be looked up. Check the Dependency Dashboard for more information.


Express.js Open Redirect in malformed URLs

CVE-2024-29041 / GHSA-rv95-896h-c2vc

More information

Details

Impact

Versions of Express.js prior to 4.19.2 and pre-release alpha and beta versions before 5.0.0-beta.3 are affected by an open redirect vulnerability using malformed URLs.

When a user of Express performs a redirect using a user-provided URL Express performs an encode using encodeurl on the contents before passing it to the location header. This can cause malformed URLs to be evaluated in unexpected ways by common redirect allow list implementations in Express applications, leading to an Open Redirect via bypass of a properly implemented allow list.

The main method impacted is res.location() but this is also called from within res.redirect().

Patches

expressjs/express@0867302
expressjs/express@0b74695

An initial fix went out with express@4.19.0, we then patched a feature regression in 4.19.1 and added improved handling for the bypass in 4.19.2.

Workarounds

The fix for this involves pre-parsing the url string with either require('node:url').parse or new URL. These are steps you can take on your own before passing the user input string to res.location or res.redirect.

Resources

https://github.com/expressjs/express/pull/5539
https://github.com/koajs/koa/issues/1800
https://expressjs.com/en/4x/api.html#res.location

Severity

  • CVSS Score: 6.1 / 10 (Medium)
  • Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

This data is provided by the GitHub Advisory Database (CC-BY 4.0).


express vulnerable to XSS via response.redirect()

CVE-2024-43796 / GHSA-qw6h-vgh9-j6wx

More information

Details

Impact

In express <4.20.0, passing untrusted user input - even after sanitizing it - to response.redirect() may execute untrusted code

Patches

this issue is patched in express 4.20.0

Workarounds

users are encouraged to upgrade to the patched version of express, but otherwise can workaround this issue by making sure any untrusted inputs are safe, ideally by validating them against an explicit allowlist

Details

successful exploitation of this vector requires the following:

  1. The attacker MUST control the input to response.redirect()
  2. express MUST NOT redirect before the template appears
  3. the browser MUST NOT complete redirection before:
  4. the user MUST click on the link in the template

Severity

  • CVSS Score: 2.3 / 10 (Low)
  • Vector String: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L

References

This data is provided by the GitHub Advisory Database (CC-BY 4.0).


Express.js Open Redirect in malformed URLs

CVE-2024-29041 / GHSA-rv95-896h-c2vc

More information

Details

Impact

Versions of Express.js prior to 4.19.2 and pre-release alpha and beta versions before 5.0.0-beta.3 are affected by an open redirect vulnerability using malformed URLs.

When a user of Express performs a redirect using a user-provided URL Express performs an encode using encodeurl on the contents before passing it to the location header. This can cause malformed URLs to be evaluated in unexpected ways by common redirect allow list implementations in Express applications, leading to an Open Redirect via bypass of a properly implemented allow list.

The main method impacted is res.location() but this is also called from within res.redirect().

Patches

expressjs/express@0867302
expressjs/express@0b74695

An initial fix went out with express@4.19.0, we then patched a feature regression in 4.19.1 and added improved handling for the bypass in 4.19.2.

Workarounds

The fix for this involves pre-parsing the url string with either require('node:url').parse or new URL. These are steps you can take on your own before passing the user input string to res.location or res.redirect.

Resources

https://github.com/expressjs/express/pull/5539
https://github.com/koajs/koa/issues/1800
https://expressjs.com/en/4x/api.html#res.location

Severity

  • CVSS Score: 6.1 / 10 (Medium)
  • Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).


express vulnerable to XSS via response.redirect()

CVE-2024-43796 / GHSA-qw6h-vgh9-j6wx

More information

Details

Impact

In express <4.20.0, passing untrusted user input - even after sanitizing it - to response.redirect() may execute untrusted code

Patches

this issue is patched in express 4.20.0

Workarounds

users are encouraged to upgrade to the patched version of express, but otherwise can workaround this issue by making sure any untrusted inputs are safe, ideally by validating them against an explicit allowlist

Details

successful exploitation of this vector requires the following:

  1. The attacker MUST control the input to response.redirect()
  2. express MUST NOT redirect before the template appears
  3. the browser MUST NOT complete redirection before:
  4. the user MUST click on the link in the template

Severity

  • CVSS Score: 2.3 / 10 (Low)
  • Vector String: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L

References

This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).


Release Notes

expressjs/express (express)

v4.20.0

Compare Source

==========

  • deps: serve-static@​0.16.0
    • Remove link renderization in html while redirecting
  • deps: send@​0.19.0
    • Remove link renderization in html while redirecting
  • deps: body-parser@​0.6.0
    • add depth option to customize the depth level in the parser
    • IMPORTANT: The default depth level for parsing URL-encoded data is now 32 (previously was Infinity)
  • Remove link renderization in html while using res.redirect
  • deps: path-to-regexp@​0.1.10
    • Adds support for named matching groups in the routes using a regex
    • Adds backtracking protection to parameters without regexes defined
  • deps: encodeurl@~2.0.0
    • Removes encoding of \, |, and ^ to align better with URL spec
  • Deprecate passing options.maxAge and options.expires to res.clearCookie
    • Will be ignored in v5, clearCookie will set a cookie with an expires in the past to instruct clients to delete the cookie

v4.19.2

Compare Source

==========

  • Improved fix for open redirect allow list bypass

v4.19.1

Compare Source

==========

  • Allow passing non-strings to res.location with new encoding handling checks

v4.19.0

Compare Source

==========

  • Prevent open redirect allow list bypass due to encodeurl
  • deps: cookie@​0.6.0

v4.18.3

Compare Source

==========

  • Fix routing requests without method
  • deps: body-parser@​1.20.2
    • Fix strict json error message on Node.js 19+
    • deps: content-type@~1.0.5
    • deps: raw-body@​2.5.2
  • deps: cookie@​0.6.0
    • Add partitioned option

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This PR was generated by Mend Renovate. View the repository job log.

@renovate renovate Bot added dependencies Pull requests that update a dependency file renovate security labels Aug 1, 2026
@renovate
renovate Bot enabled auto-merge (squash) August 1, 2026 16:08
@wiz-inc-38d59fb8d7

wiz-inc-38d59fb8d7 Bot commented Aug 1, 2026

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Wiz Scan Summary

Scanner Findings
Vulnerability Finding Vulnerabilities 3 Low
Data Finding Sensitive Data -
Secret Finding Secrets -
IaC Misconfiguration IaC Misconfigurations -
SAST Finding SAST Findings -
Software Management Finding Software Management Findings -
Total 3 Low

View scan details in Wiz

To detect these findings earlier in the dev lifecycle, try the Wiz Code extension for VS Code, JetBrains, or Visual Studio.

@renovate
renovate Bot force-pushed the renovate/npm-express-vulnerability branch 11 times, most recently from d13e95d to 65710ce Compare August 2, 2026 02:07
@renovate
renovate Bot force-pushed the renovate/npm-express-vulnerability branch from 65710ce to 44b5306 Compare August 2, 2026 02:54
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