Auth bypass in Elastic Kibana
CVE-2026-72672
The Elastic Security capability that suggests existing field values while a user authors endpoint policy artifacts queries Elastic Defend event data with Kibana's internal Elasticsearch account instead of the account of the requesting user. Only Kibana feature privileges are verified, and the caller's Elasticsearch index privileges are not. An authenticated user who holds Elastic Security feature privileges but no read access to the Elastic Defend event indices can therefore retrieve field values from that data, including process command line arguments, which commonly contain tokens, credentials, connection strings, and other sensitive operational detail from protected hosts.
Vulnerability class: Broken Access Control
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.
Affected products
- Elastic Kibana — versions 9.1.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-72672?
- CVE-2026-72672 is a high-severity vulnerability in Elastic Kibana, classified under Incorrect Authorization. CVSS score: 7.7/10. Published 2026-08-13.
- How severe is CVE-2026-72672?
- High severity. CVSS v3 base score is 7.7 out of 10.