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fix(deps): update dependency express to v4.20.0 [security] #971

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@renovate renovate bot commented Mar 29, 2024

This PR contains the following updates:

Package Change Age Adoption Passing Confidence
express (source) 4.18.2 -> 4.20.0 age adoption passing confidence

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

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

==========


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@renovate renovate bot enabled auto-merge (rebase) March 29, 2024 08:29
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⚠️ No Changeset found

Latest commit: 09f7d5d

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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@renovate renovate bot changed the title chore(deps): update dependency express to v4.19.2 [security] chore(deps): update dependency express to v4.20.0 [security] Sep 17, 2024
@renovate renovate bot changed the title chore(deps): update dependency express to v4.20.0 [security] chore(deps): update dependency express to v4.20.0 [security] - autoclosed Dec 8, 2024
@renovate renovate bot closed this Dec 8, 2024
auto-merge was automatically disabled December 8, 2024 18:39

Pull request was closed

@renovate renovate bot deleted the renovate/npm-express-vulnerability branch December 8, 2024 18:39
@renovate renovate bot changed the title chore(deps): update dependency express to v4.20.0 [security] - autoclosed chore(deps): update dependency express to v4.20.0 [security] Dec 8, 2024
@renovate renovate bot reopened this Dec 8, 2024
@renovate renovate bot force-pushed the renovate/npm-express-vulnerability branch from cd250a2 to 09f7d5d Compare December 8, 2024 23:53
@renovate renovate bot enabled auto-merge (squash) December 9, 2024 00:20
@renovate renovate bot changed the title chore(deps): update dependency express to v4.20.0 [security] fix(deps): update dependency express to v4.20.0 [security] Dec 10, 2024
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