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OpenAdvisories
Medium · 6.5 CVE-2026-26934 EUVD-2026-8863GHSA-vvxg-3v44-fpqx

Improper Validation of Specified Quantity in Input in Kibana Leading to Denial of Service

Published Feb 26, 2026 · Updated Feb 26, 2026 · Assigned by elastic

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

VendorProductAffectedFixed
Elastic Kibana 8.18.0 – ≤ 8.19.11, 9.0.0 – ≤ 9.2.5, 9.3.0 – ≤ 9.3.0 —

Advisories 2

References