HTTP Response Splitting The advisory has been revoked - it doesn't affect any version of package org.http4s:http4s-server_3 Open this link in a new tab

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • snyk-id


  • published

    22 Sep 2021

  • disclosed

    22 Sep 2021

  • credit



This was deemed not a vulnerability.


Affected versions of this package are vulnerable to HTTP Response Splitting when untrusted user input is used to create any of the following fields:

  1. Header names (

  2. Header values (Header.value)

  3. Status reason phrases (Status.reason)

  4. URI paths (Uri.Path)

  5. URI authority registered names (URI.RegName)