Name: CVE-2026-42400: Uncontrolled Resource Consumption
Creator: Rapid7
Published: 2026-05-28T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-42400, CWE-400, CVSS 6.5, EPSS 0.00332

Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user can send a specially crafted compressed request payload that is processed prior to authorization checks, causing excessive memory and CPU resource consumption that can result in a Kibana instance becoming unresponsive or crashing.

CVSS Details

CVSS 3.1 Base Score: 6.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Elastic Kibana	—	Upgrade Elastic Kibana to the latest version	May 29, 2026	May 28, 2026

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CVSS Details

Covered by Rapid7

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