Denial of Service via incomplete cleanup vulnerability in Apache Tomcat. It was possible for WebSocket clients to keep WebSocket connections open leading to increased resource consumption.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98. Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.
https://security.netapp.com/advisory/ntap-20240402-0002/
https://lists.debian.org/debian-lts-announce/2024/04/msg00001.html
https://lists.apache.org/thread/cmpswfx6tj4s7x0nxxosvfqs11lvdx2f