CVE-2026-63261

Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user can send a specially crafted request to a Kibana machine learning feature, causing the server to exhaust available memory and become unavailable to all users.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://discuss.elastic.co/t/kibana-8-19-19-9-3-8-9-4-4-security-update-esa-2026-72/388575	Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

24 Oct 2026, 17:10

Type	Values Removed	Values Added
Summary		(es) El Consumo de Recursos No Controlado (CWE-400) en Kibana puede llevar a una denegación de servicio a través de Asignación Excesiva (CAPEC-130). Un usuario autenticado con bajos privilegios puede enviar una solicitud especialmente diseñada a una característica de aprendizaje automático de Kibana, haciendo que el servidor agote la memoria disponible y quede no disponible para todos los usuarios.

Information

Published : 2026-07-21 23:18

Updated : 2026-10-24 17:10

NVD link : CVE-2026-63261

Mitre link : CVE-2026-63261

CVE.ORG link : CVE-2026-63261

JSON object : View

Products Affected

elastic

kibana

CWE

CWE-400

Uncontrolled Resource Consumption

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