Update dependency express to v4.19.2 [SECURITY]

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
express (source)	4.18.2 → 4.19.2

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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

• https://github.com/expressjs/express/security/advisories/GHSA-rv95-896h-c2vc
• https://github.com/koajs/koa/issues/1800
• https://github.com/expressjs/express/pull/5539
• https://github.com/expressjs/express/commit/0867302ddbde0e9463d0564fea5861feb708c2dd
• https://github.com/expressjs/express/commit/0b746953c4bd8e377123527db11f9cd866e39f94
• https://expressjs.com/en/4x/api.html#res.location
• https://nvd.nist.gov/vuln/detail/CVE-2024-29041
• https://github.com/advisories/GHSA-rv95-896h-c2vc

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

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Release Notes

expressjs/express (express)

v4.19.2

Compare Source

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• 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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