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CVE-2026-26934

nvd nist
Published: Feb 26, 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

Improper Validation of Specified Quantity in Input (CWE-1284) in Kibana can allow an authenticated attacker with view-only privileges to cause a Denial of Service via Input Data Manipulation (CAPEC-153). An attacker can send a specially crafted, malformed payload causing excessive resource consumption and resulting in Kibana becoming unresponsive or crashing.

Affected (3)

Products: Elastic: Kibana
Elastic
1 product
Kibana
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Elastic
Kibana
From 8.18.0 to 8.19.12
Kibana
From 9.0.0 to 9.2.6
Kibana
Version 9.3.0

Related CWEs

CWE-1284
Improper Validation of Specified Quantity in Input
The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.

References (1)

Source: security@elastic.co
Vendor Advisory

Timeline

No history available yet.