It was recently confirmed that Spring4Shell has at least one RCE vulnerability in the Spring framerwork. Investigation is still in progress, and you can expect updates as analyses get further.
Is Kantega SSO Enterprise affected?
Kantega SSO Enterprise is built with JDK 8 packaged as a .jar, and we do not use spring-core, spring-webmvc or spring-webflux. From our intital analysis (Mar 31, 2022), Kantega SSO Enterprise is not affected by Spring4Shell CVE-2022-22965.
Is my Atlassian Data Center / Server system affected?