CVE-2020-27978
Shibboleth Identify Provider 3.x before 3.4.6 has a denial of service flaw. A remote unauthenticated attacker can cause a login flow to trigger Java heap exhaustion due to the creation of objects in the Java Servlet container session.
Date published : 2020-10-28
https://shibboleth.net/community/advisories/secadv_20191002.txt