CVE-2026-63139
Medium
Description
Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated low-privileged user can exploit an uncontrolled resource consumption vulnerability in Kibana's Canvas functionality by sending a specially crafted request, causing the Kibana server process to terminate and resulting in a denial of service for all users of the affected Kibana instance.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Elastic Kibana
PublishedJul 21, 2026
First seenJul 21, 2026
Weakness typeCWE-400Uncontrolled resource consumption
How to fix
Update
- elastic kibana8.19.19, 9.3.8, 9.4.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| elastic kibana | 8.19.0 ≤ v < 8.19.19, 9.3.0 ≤ v < 9.3.8, 9.4.0 ≤ v < 9.4.4 | 8.19.19, 9.3.8, 9.4.4 |
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