title: Apache Tomcat: Request header mix-up between HTTP/2 streams
description: While investigating bug 64830 it was discovered that Apache Tomcat 10.0.0-M1 to 10.0.0-M9, 9.0.0-M1 to 9.0.39 and 8.5.0 to 8.5.59 could re-use an HTTP request header value from the previous stream received on an HTTP/2 connection for the request associated with the subsequent stream. While this would most likely lead to an error and the closure of the HTTP/2 connection, it is possible that information could leak between requests.
problem types: CWE-200 Information Exposure
affected:
{
product: Apache Tomcat
vendor: Apache Software Foundation
versions:
status: affected, version: Apache Tomcat 10 10.0.0-M1 to 10.0.0-M9
status: affected, version: Apache Tomcat 9 9.0.0-M1 to 9.0.39
status: affected, version: Apache Tomcat 8.5 8.5.0 to 8.5.59
}