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CVE-2026-42399

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 low-privileged user can cause Kibana to consume exponentially increasing amounts of memory by submitting a specially crafted Timelion visualization expression containing deeply chained function calls. The resulting data structure grows without bound, exhausting available memory and causing the Kibana service to crash and become unavailable to all users.

Affected (2)

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

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.