CVE-2026-72663
Medium
Description
Inefficient Algorithmic Complexity (CWE-407) in Kibana can lead to denial of service via Input Data Manipulation (CAPEC-153). A specially crafted, deeply nested expression submitted to a Kibana TSVB visualization is evaluated with a worst-case cost that grows disproportionately with the size of the input. Because the evaluation runs synchronously, a single request consumes the Kibana request-processing thread indefinitely, and Kibana stops responding to all further requests until the service is restarted.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Elastic Kibana
PublishedAug 13, 2026
First seenAug 13, 2026
Weakness typeCWE-407CWE-407
How to fix
Update
- elastic kibana8.19.20, 9.4.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| elastic kibana | 8.0.0 ≤ v < 8.19.20, 9.0.0 ≤ v < 9.4.5 | 8.19.20, 9.4.5 |
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