Today we are releasing Ember.js 3.24.7, 3.28.10, 4.4.4, 4.8.1, and 4.9.0-beta.3 to patch a security vulnerability. A CVE number is pending and this post will be updated to include it once it's been issued.
This is a companion discussion topic for the original entry at https://blog.emberjs.com/ember-4-8-1-released/