Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82 and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy.Users are recommended to upgrade to version 11.0.0-M11 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.
{ "cpes": [ "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:11.0.0:milestone10:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:11.0.0:milestone1:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:11.0.0:milestone2:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:11.0.0:milestone3:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:11.0.0:milestone4:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:11.0.0:milestone5:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:11.0.0:milestone6:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:11.0.0:milestone7:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:11.0.0:milestone8:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:11.0.0:milestone9:*:*:*:*:*:*" ], "severity": "High" }