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Medium · 6.5 CVE-2026-63260 EUVD-2026-47588GHSA-qcp3-347v-7f6g

Uncontrolled Resource Consumption in Kibana Leading to Denial of Service

Published Jul 21, 2026 · Updated Jul 22, 2026 · Assigned by elastic

Description

Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated attacker with low-privilege access can trigger a denial of service condition in Kibana by sending a specially crafted, oversized request payload. Processing this user-supplied input requires resource-intensive memory allocation that can exhaust the available heap memory in the Kibana process, causing it to crash and become unavailable to all users.

Affected products

VendorProductAffectedFixed
Elastic Kibana 9.0.0 – ≤ 9.3.7, 8.0.0 – ≤ 8.19.18, 9.4.0 – ≤ 9.4.3 —

Advisories 1

References