Incorrect Authorization (CWE-863) in Kibana can lead to denial of service via Exploiting Incorrectly Configured Access Control Security Levels (CAPEC-180).
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-70661
https://discuss.elastic.co/t/kibana-8-19-21-9-4-6-9-5-3-security-update-esa-2026-174/390162