Auth bypass in Elastic Kibana
CVE-2026-72675
Missing Authorization (CWE-862) in Kibana can lead to cross-space information disclosure and unauthorized data modification via Privilege Abuse (CAPEC-122). Kibana Machine Learning carries out its Elasticsearch operations with elevated internal permissions and relies on a per-request space filter to keep the machine learning data of one space separated from another. Part of the Machine Learning functionality did not apply that filter, so operations issued from one space were carried out against the machine learning data of every space in the deployment.
Vulnerability class: Broken Access Control
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N.
Affected products
- Elastic Kibana — versions 8.0.0, 9.0.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-72675?
- CVE-2026-72675 is a high-severity vulnerability in Elastic Kibana, classified under Missing Authorization. CVSS score: 7.1/10. Published 2026-08-13.
- How severe is CVE-2026-72675?
- High severity. CVSS v3 base score is 7.1 out of 10.