CVE-2026-33459 MEDIUM

CVE-2026-33459: Uncontrolled Resource Consumption in Kibana Leading to Denial of Service

Vendor Elastic
Product Kibana
Weakness CWE-400
Published April 8, 2026
Last update April 9, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 8, 2026 CVE published
April 9, 2026 Record updated