CVE-2005-2090: Apache Tomcat

Medium severity, CVSS 4.3. EPSS: 29.8% chance of exploitation in the next 30 days.

Jakarta Tomcat 5.0.19 (Coyote/1.1) and Tomcat 4.1.24 (Coyote/1.0) allows remote attackers to poison the web cache, bypass web application firewall protection, and conduct XSS attacks via an HTTP request with both a "Transfer-Encoding: chunked" header and a Content-Length header, which causes Tomcat to incorrectly handle and forward the body of the request in a way that causes the receiving server to process it as a separate HTTP request, aka "HTTP Request Smuggling."

Affected products

• Apache Tomcat: version 4.1.24 only; version 5.0.19 only

Published 2005-07-05. Last modified 2026-06-16.