Vulnerability in Elastic Kibana
CVE-2026-72644
Uncaught Exception (CWE-248) in Kibana can lead to a denial of service via Input Data Manipulation (CAPEC-153). An authenticated user holding only the low-privileged feature access required to use the Observability AI Assistant can submit a specially crafted request that produces an unhandled error condition, terminating the Kibana process and denying service to all users and spaces on that instance until it is restarted.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (34.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 34.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Elastic Kibana — versions 9.5.0
Weakness classification (CWE)
References
- discuss.elastic.co/t/kibana-9-4-5-9-5-1-security-update-esa-2026-115/390088 (Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-72644?
- CVE-2026-72644 is a medium-severity vulnerability in Elastic Kibana, classified under CWE-248. CVSS score: 6.5/10. Published 2026-09-01.
- How severe is CVE-2026-72644?
- Medium severity. CVSS v3 base score is 6.5 out of 10.