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Uncontrolled Resource Consumption in Apache Tomcat

Description

A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become unresponsive.


Affected Software


CPE Name Name Version
org.apache.tomcat:tomcat 8.5.0
org.apache.tomcat:tomcat 8.5.55
org.apache.tomcat:tomcat 9.0.0.M1
org.apache.tomcat:tomcat 9.0.35
org.apache.tomcat:tomcat 10.0.0-M1
org.apache.tomcat:tomcat 10.0.0-M4

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