CVE-2026-26940
Medium
Description
Improper Validation of Specified Quantity in Input (CWE-1284) in the Timelion visualization plugin in Kibana can lead Denial of Service via Excessive Allocation (CAPEC-130). The vulnerability allows an authenticated user to send a specially crafted Timelion expression that overwrites internal series data properties with an excessively large quantity value.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Elastic Kibana
PublishedMar 19, 2026
First seenMar 19, 2026
Weakness typeCWE-1284CWE-1284
How to fix
Update
- elastic kibana8.19.13, 9.2.7, 9.3.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| elastic kibana | 8.0.0 ≤ v < 8.19.13, 9.0.0 ≤ v < 9.2.7, 9.3.0 ≤ v < 9.3.2 | 8.19.13, 9.2.7, 9.3.2 |
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