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HTTP Request Smuggling Affecting waitress package, versions [,1.4.2)

0.0
high

Snyk CVSS

    Attack Complexity High
    Scope Changed
    Confidentiality High

    Threat Intelligence

    EPSS 0.24% (65th percentile)
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NVD
8.2 high
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SUSE
7.1 high
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Red Hat
8.2 high

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  • Snyk ID SNYK-PYTHON-WAITRESS-539932
  • published 27 Dec 2019
  • disclosed 26 Dec 2019
  • credit Unknown
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Introduced: 26 Dec 2019

CVE-2019-16789 Open this link in a new tab
CWE-444 Open this link in a new tab

How to fix?

Upgrade waitress to version 1.4.2 or higher.

Overview

waitress is a production-quality pure-Python WSGI server with very acceptable performance.

Affected versions of this package are vulnerable to HTTP Request Smuggling. Potential HTTP pipelining issues and request smuggling attacks might be possible due to waitress not correctly responding to HTTP requests.

Note: An incomplete fix was released in version 1.4.1.