CVE-2026-26934

published 2026-02-26

CVE-2026-26934: 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…

Priority P3 35 medium 6.5 CVSS 3.1

AV N AC L PR L UI N S U C N I N A H

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

6 ranges

Vendor	Product	Version range	Fixed in
elastic	kibana	—	—
elastic	kibana	>= 8.18.0 < 8.19.12	8.19.12
elastic	kibana	8.18.0 – 8.19.11	—
elastic	kibana	>= 9.0.0 < 9.2.6	9.2.6
elastic	kibana	9.0.0 – 9.2.5	—
elastic	kibana	9.3.0 – 9.3.0	—

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CWE-1284