Tenant logs showed numerous events of the type Failed Login (invalid email/username) (fu) , which carried the description “self signed certificate”
The reported incident related to use of Postgres as the custom database.
The solution here is to use a later version of the
pg driver. You can self-resolve this by shifting from
require('email@example.com') . Of course, the new driver may have a different API so if you are looking to make this transition you should adjust your code accordingly.