CVE-2026-26934 MEDIUM

CVE-2026-26934: Improper Validation of Specified Quantity in Input in Kibana Leading to Denial of Service

Vendor Elastic
Product Kibana
Weakness CWE-1284
Published February 26, 2026
Last update February 26, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

February 26, 2026 CVE published
February 26, 2026 Record updated