CVE-2026-42400

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.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*
cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*
cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*

History

01 Jun 2026, 14:13

Type Values Removed Values Added
CPE cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*
First Time Elastic
Elastic kibana
References () https://discuss.elastic.co/t/kibana-8-19-16-9-3-5-9-4-2-security-update-esa-2026-35/386554 - () https://discuss.elastic.co/t/kibana-8-19-16-9-3-5-9-4-2-security-update-esa-2026-35/386554 - Vendor Advisory

28 May 2026, 21:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-05-28 21:16

Updated : 2026-06-01 14:13


NVD link : CVE-2026-42400

Mitre link : CVE-2026-42400

CVE.ORG link : CVE-2026-42400


JSON object : View

Products Affected

elastic

  • kibana
CWE
CWE-400

Uncontrolled Resource Consumption