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fix(deps): update dependency express to v4.19.2 [security] #601

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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) 4.17.1 -> 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 [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


Release Notes

expressjs/express (express)

v4.19.2

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==========

  • Improved fix for open redirect allow list bypass

v4.19.1

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==========

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

v4.19.0

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v4.18.3

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==========

v4.18.2

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

v4.18.1

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

  • Fix hanging on large stack of sync routes

v4.18.0

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

v4.17.3

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

v4.17.2

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


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@renovate renovate bot added the renovate label Mar 26, 2024
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Coverage Status

coverage: 32.315%. remained the same
when pulling 4a9e364 on renovate/npm-express-vulnerability
into 424a858 on master.

@withdave withdave closed this May 28, 2024
@withdave withdave deleted the renovate/npm-express-vulnerability branch May 28, 2024 19:46
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renovate bot commented May 28, 2024

Renovate Ignore Notification

Because you closed this PR without merging, Renovate will ignore this update (4.19.2). You will get a PR once a newer version is released. To ignore this dependency forever, add it to the ignoreDeps array of your Renovate config.

If you accidentally closed this PR, or if you changed your mind: rename this PR to get a fresh replacement PR.

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