GHSA-RJWW-2X8V-M9V9 Potential sensitive data exposure in applications using Vaadin 15

Insecure configuration of default ObjectMapper in com.vaadin:flow-server versions 3.0.0 through 3.0.5 Vaadin 15.0.0 through 15.0.4 may expose sensitive data if the application also uses e.g. @RestController - https://vaadin.com/security/cve-2020-36319...