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6.5 Medium

CVE-2026-26934 Improper Validation of Specified Quantity in Input (CWE-1284) in Kibana can allow an authenticated attacker with…

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 products and versions

Product Affected versions Fixed in
Kibana 9.3.0 No fix stated
Kibana 9.0 9.0.0 → 9.2.5 No fix stated
Kibana 8.18 8.18.0 → 8.19.11 No fix stated

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