Update dependency express to v4.20.0 [SECURITY]

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
express (source)	4.17.3 -> 4.20.0

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Warning

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GitHub Vulnerability Alerts

CVE-2024-29041

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 [email protected], 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.

References

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

CVE-2024-43796

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

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Release Notes

expressjs/express (express)

v4.20.0

Compare Source

==========

• deps: [email protected]
  • Remove link renderization in html while redirecting
• deps: [email protected]
  • Remove link renderization in html while redirecting
• deps: [email protected]
  • 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: [email protected]
  • 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

v4.18.3

Compare Source

==========

• Fix routing requests without method
• deps: [email protected]
  • Fix strict json error message on Node.js 19+
  • deps: content-type@~1.0.5
  • deps: [email protected]

v4.18.2

Compare Source

===================

• Fix regression routing a large stack in a single route
• deps: [email protected]
  • deps: [email protected]
  • perf: remove unnecessary object clone
• deps: [email protected]

v4.18.1

Compare Source

===================

• Fix hanging on large stack of sync routes

v4.18.0

Compare Source

===================

• Add "root" option to res.download
• Allow options without filename in res.download
• Deprecate string and non-integer arguments to res.status
• Fix behavior of null/undefined as maxAge in res.cookie
• Fix handling very large stacks of sync middleware
• Ignore Object.prototype values in settings through app.set/app.get
• Invoke default with same arguments as types in res.format
• Support proper 205 responses using res.send
• Use http-errors for res.format error
• deps: [email protected]
  • Fix error message for json parse whitespace in strict
  • Fix internal error when inflated body exceeds limit
  • Prevent loss of async hooks context
  • Prevent hanging when request already read
  • deps: [email protected]
  • deps: [email protected]
  • deps: [email protected]
  • deps: [email protected]
  • deps: [email protected]
• deps: [email protected]
  • Add priority option
  • Fix expires option to reject invalid dates
• deps: [email protected]
  • Replace internal eval usage with Function constructor
  • Use instance methods on process to check for listeners
• deps: [email protected]
  • Remove set content headers that break response
  • deps: [email protected]
  • deps: [email protected]
• deps: [email protected]
  • Prevent loss of async hooks context
• deps: [email protected]
• deps: [email protected]
  • Fix emitted 416 error missing headers property
  • Limit the headers removed for 304 response
  • deps: [email protected]
  • deps: [email protected]
  • deps: [email protected]
  • deps: [email protected]
  • deps: [email protected]
• deps: [email protected]
  • deps: [email protected]
• deps: [email protected]
  • Remove code 306
  • Rename 425 Unordered Collection to standard 425 Too Early

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