CVE-2026-78586
Medium
Description
Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user with low-level privileges could submit a specially crafted request that causes Kibana to consume an unbounded amount of memory, rendering it unavailable to all users.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Elastic Kibana
PublishedSep 2, 2026
First seenSep 2, 2026
Weakness typeCWE-770Allocation of resources without limits
How to fix
Update
- elastic kibana8.19.16, 9.3.5, 9.4.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| elastic kibana | 8.0.0 ≤ v < 8.19.16, 9.0.0 ≤ v < 9.3.5, 9.4.0 ≤ v < 9.4.2 | 8.19.16, 9.3.5, 9.4.2 |
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