Auth bypass in Elastic Kibana

CVE-2026-72633

Incorrect Authorization (CWE-863) in Kibana Entity Analytics can lead to a loss of security monitoring via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). An authenticated user holding only read-level Security feature access, and no Elasticsearch privileges, could stop the recurring Privilege Monitoring engine task for a Kibana space. Privileged user monitoring then stops producing data for that space while the engine continues to report a healthy state to operators.

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-72633?
CVE-2026-72633 is a medium-severity vulnerability in Elastic Kibana, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-09-01.
How severe is CVE-2026-72633?
Medium severity. CVSS v3 base score is 4.3 out of 10.