Unauthenticated DoS: avatar cache leaks goroutines when /avatar/:hash requests time out

Every uncached /avatar/:hash request spawns a goroutine that refreshes the Gravatar image. If the refresh sits in the 10-slot worker queue longer than three seconds, the handler times out and stops listening for the result, so that goroutine blocks forever trying to send on an unbuffered channel. Sustained traffic with random hashes keeps tripping this timeout, so goroutine count grows linearly, eventually exhausting memory and causing Grafana to crash on some systems.

Public Dashboards time range restriction on annotations can be bypassed

Public dashboards with annotations enabled did not limit their annotation timerange to the locked timerange of the public dashboard. This means one could read the entire history of annotations visible on the specific dashboard, even those outside the locked timerange. This did not leak any annotations that would not otherwise be visible on the public dashboard.

grafana: Cross-Site Scripting in Grafana XY Chart Panel

The built-in XY Chart plugin is vulnerable to a DOM XSS vulnerability. A user with Editor permissions is able to modify such a panel in order to make it execute arbitrary JavaScript.

Access control for plugin data sources protected by the ReqActions json field of the plugin.json is bypassed if the user or service account is granted associated access to any other data source, as the ReqActions check was not scoped to each specific datasource. The account must have prior query access to the impacted datasource.

grafana: incorrect assessment of permissions across organizations

Grafana is an open-source platform for monitoring and observability. The vulnerability impacts Grafana instances with several organizations, and allows a user with Organization Admin permissions in one organization to change the permissions associated with Organization Viewer, Organization Editor and Organization Admin roles in all organizations. It also allows an Organization Admin to assign or revoke any permissions that they have to any user globally. This means that any Organization Admin can elevate their own permissions in any organization that they are already a member of, or elevate or restrict the permissions of any other user. The vulnerability does not allow a user to become a member of an organization that they are not already a member of, or to add any other users to an organization that the current user is not a member of.

grafana: email verification bypass

A user changing their email after signing up and verifying it can change it without verification in profile settings. The configuration option "verify_email_enabled" will only validate email only on sign up.