Auth bypass in Elastic Kibana
CVE-2026-72665
Missing Authorization (CWE-862) in Kibana can lead to unauthorized execution of Osquery and Elastic Defend response actions on managed hosts via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). A Kibana user who is able to author and evaluate Elastic Security detection rules can cause response actions to be carried out against enrolled agents without holding the Osquery live query privileges or the Elastic Defend response action privileges that normally govern those capabilities. Depending on the response action involved, this can result in disclosure of information from the affected hosts or in unauthorized changes to their state.
Vulnerability class: Broken Access Control
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Elastic Kibana — versions 8.5.0, 9.0.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-72665?
- CVE-2026-72665 is a high-severity vulnerability in Elastic Kibana, classified under Missing Authorization. CVSS score: 8.1/10. Published 2026-08-13.
- How severe is CVE-2026-72665?
- High severity. CVSS v3 base score is 8.1 out of 10.