Elastic Cloud change history: Issue with Kibana authentication flow

A major Kibana authentication outage affected Deployments and Projects: the "Log in with Elastic Cloud" button failed. It started at 2026-06-16 10:57 UTC and was resolved at 2026-06-16 11:36 UTC, lasting 38 min. Customers could use the Kibana link inside the Elastic Cloud console as a workaround; Elastic reported identifying the root cause and mitigating the issue.