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HTTP Request Smuggling Affecting org.apache.tomcat:tomcat-coyote package, versions [10.0.0-M1,10.0.0-M8) [9.0.0.M5, 9.0.38) [8.5.1, 8.5.58)

0.0
medium

Snyk CVSS

    Attack Complexity High

    Threat Intelligence

    EPSS 0.1% (42nd percentile)
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NVD
4.3 medium
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SUSE
5.3 medium
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Red Hat
5.3 medium

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  • Snyk ID SNYK-JAVA-ORGAPACHETOMCAT-1017114
  • published 13 Oct 2020
  • disclosed 13 Oct 2020
  • credit Unknown
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Introduced: 13 Oct 2020

CVE-2020-13943 Open this link in a new tab
CWE-444 Open this link in a new tab

How to fix?

Upgrade org.apache.tomcat:tomcat-coyote to version 10.0.0-M8, 9.0.38, 8.5.58 or higher.

Overview

org.apache.tomcat:tomcat-coyote is a Tomcat Connectors and HTTP parser.

Affected versions of this package are vulnerable to HTTP Request Smuggling. If an HTTP/2 client connecting to Apache Tomcat exceeded the agreed maximum number of concurrent streams for a connection (in violation of the HTTP/2 protocol), it was possible that a subsequent request made on that connection could contain HTTP headers - including HTTP/2 pseudo headers - from a previous request rather than the intended headers. This could lead to users seeing responses for unexpected resources.