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OpenAdvisories
Medium · 6.5 CVE-2026-42400 EUVD-2026-33030GHSA-mhgf-jqhm-p7p3

Uncontrolled Resource Consumption in Kibana Leading to Denial of Service

Published May 28, 2026 · Updated May 29, 2026 · Assigned by elastic

Description

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.

Affected products

VendorProductAffectedFixed
Elastic Kibana 9.4.0 – ≤ 9.4.1, 9.0.0 – ≤ 9.3.4, 8.0.0 – ≤ 8.19.15 —

Advisories 1

References