There are 2 open security issues in bullseye.
1 important issue:
In api.rb in Sidekiq before 5.2.10 and 6.4.0, there is no limit on the number of days when requesting stats for the graph. This overloads the system, affecting the Web UI, and makes it unavailable to users.
1 issue left for the package maintainer to handle:
Sidekiq through 5.1.3 and 6.x through 6.2.0 allows XSS via the queue name of the live-poll feature when Internet Explorer is used.
You can find information about how to handle this issue in the security team's documentation.