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fix(deps): update dependency express to v4.19.2 [security] #356

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merged 1 commit into from Mar 26, 2024

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@renovate renovate bot commented Mar 26, 2024

Mend Renovate

This PR contains the following updates:

Package Change Age Adoption Passing Confidence
express (source) 4.19.1 -> 4.19.2 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 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.

References

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


Release Notes

expressjs/express (express)

v4.19.2

Compare Source

==========

  • Improved fix for open redirect allow list bypass

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This PR has been generated by Mend Renovate. View repository job log here.

@renovate renovate bot added the Type: Maintenance Any dependency, housekeeping, and clean up Issue or PR label Mar 26, 2024
@gr2m gr2m merged commit cdced4a into main Mar 26, 2024
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@gr2m gr2m deleted the renovate/npm-express-vulnerability branch March 26, 2024 15:43
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