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CVE-2026-42400

nvd nist
Published: May 28, 2026Modified: Jun 17, 2026

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6.5
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploitability: 2.8 / Impact: 3.6
Source: security@elastic.co (Secondary)

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 (3)

Products: Elastic: Kibana
Elastic
1 product
Kibana
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Elastic
Kibana
From 8.0.0 to 8.19.16
Kibana
From 9.0.0 to 9.3.5
Kibana
From 9.4.0 to 9.4.2

Related CWEs

CWE-400
Uncontrolled Resource Consumption
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

References (1)

Source: security@elastic.co
Vendor Advisory

Timeline

No history available yet.