CVE-2026-63261
Medium
Description
Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user can send a specially crafted request to a Kibana machine learning feature, causing the server to exhaust available memory and become unavailable to all users.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Elastic Kibana
PublishedJul 21, 2026
First seenJul 21, 2026
Weakness typeCWE-400Uncontrolled resource consumption
How to fix
Update
- elastic kibana8.19.19, 9.3.8, 9.4.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| elastic kibana | 8.0.0 ≤ v < 8.19.19, 9.0.0 ≤ v < 9.3.8, 9.4.0 ≤ v < 9.4.4 | 8.19.19, 9.3.8, 9.4.4 |
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