FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

tomcat -- HTTP request smuggling in multiple versions

Affected packages
8.5.0 <= tomcat85 <= 8.5.66
9.0.0 <= tomcat9 <= 9.0.46
10.0.0 <= tomcat10 <= 10.0.6


VuXML ID d34bef0b-f312-11eb-b12b-fc4dd43e2b6a
Discovery 2021-05-07
Entry 2021-08-01

Bahruz Jabiyev, Steven Sprecher and Kaan Onarlioglu of NEU seclab reports:

Apache Tomcat did not correctly parse the HTTP transfer-encoding request header in some circumstances leading to the possibility to request smuggling when used with a reverse proxy. Specifically: Tomcat incorrectly ignored the transfer-encoding header if the client declared it would only accept an HTTP/1.0 response; Tomcat honoured the identify encoding; and Tomcat did not ensure that, if present, the chunked encoding was the final encoding.


CVE Name CVE-2021-33037