CVE-2026-72663

Inefficient Algorithmic Complexity (CWE-407) in Kibana can lead to denial of service via Input Data Manipulation (CAPEC-153). A specially crafted, deeply nested expression submitted to a Kibana TSVB visualization is evaluated with a worst-case cost that grows disproportionately with the size of the input. Because the evaluation runs synchronously, a single request consumes the Kibana request-processing thread indefinitely, and Kibana stops responding to all further requests until the service is restarted.

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-8-19-20-and-9-4-5-security-update-esa-2026-104/389520	Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

24 Oct 2026, 15:10

Type	Values Removed	Values Added
Summary		(es) La Complejidad Algorítmica Ineficiente (CWE-407) en Kibana puede conducir a una denegación de servicio a través de la Manipulación de Datos de Entrada (CAPEC-153). Una expresión especialmente diseñada y profundamente anidada, enviada a una visualización TSVB de Kibana, se evalúa con un costo en el peor de los casos que crece desproporcionadamente con el tamaño de la entrada. Debido a que la evaluación se ejecuta sincrónicamente, una única solicitud consume el hilo de procesamiento de solicitudes de Kibana indefinidamente, y Kibana deja de responder a todas las solicitudes posteriores hasta que se reinicie el servicio.

Information

Published : 2026-08-13 20:17

Updated : 2026-10-24 15:10

NVD link : CVE-2026-72663

Mitre link : CVE-2026-72663

CVE.ORG link : CVE-2026-72663

JSON object : View

Products Affected

elastic

kibana

CWE

CWE-407

Inefficient Algorithmic Complexity

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