CVE-2026-33459
Medium
Description
Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user with access to the automatic import feature can submit specially crafted requests with excessively large input values. When multiple such requests are sent concurrently, the backend services become unstable, resulting in service disruption and deployment unavailability for all users.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Elastic Kibana
PublishedApr 8, 2026
First seenApr 8, 2026
Weakness typeCWE-400Uncontrolled resource consumption
How to fix
Update
- elastic kibana8.19.14, 9.2.8, 9.3.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| elastic kibana | 8.15.0 ≤ v < 8.19.14, 9.0.0 ≤ v < 9.2.8, 9.3.0 ≤ v < 9.3.3 | 8.19.14, 9.2.8, 9.3.3 |
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