HTTP Request Smuggling Affecting org.apache.tomcat.embed:tomcat-embed-core package, versions [7.0.98,7.0.100) [8.5.48,8.5.51) [9.0.28,9.0.31)

  • Exploit Maturity

    Proof of concept

  • Attack Complexity


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  • snyk-id


  • published

    25 Feb 2020

  • disclosed

    24 Feb 2020

  • credit


How to fix?

Upgrade org.apache.tomcat.embed:tomcat-embed-core to version 7.0.100, 8.5.51, 9.0.31 or higher.


org.apache.tomcat.embed:tomcat-embed-core is a Core Tomcat implementation.

Affected versions of this package are vulnerable to HTTP Request Smuggling. Invalid Transfer-Encoding headers were incorrectly processed, leading to possible information exposure if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header.