There exists a security vulnerability in Jetty's DosFilter which can be exploited by unauthorized users to cause remote denial-of-service (DoS) attack on the server using DosFilter. By repeatedly sending crafted requests, attackers can trigger OutofMemory errors and exhaust the server's memory finally.
https://gitlab.eclipse.org/security/cve-assignement/-/issues/39
https://github.com/jetty/jetty.project/security/advisories/GHSA-7hcf-ppf8-5w5h