Web Cache Poisoning The advisory has been revoked - it doesn't affect any version of package tornado Open this link in a new tab

    Threat Intelligence

    Exploit Maturity Proof of concept
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Red Hat
6.8 medium

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  • published 18 Jan 2021
  • disclosed 13 Oct 2020
  • credit Snyk Security Team


This was deemed not a vulnerability.


tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed.

Affected versions of this package are vulnerable to Web Cache Poisoning. The root cause of this vulnerability was determined to by a python issue, see here for more details. Upgrade to a fixed version of python to ensure your application is secure.