CVE-2026-72628
Medium
Description
Improper Handling of Highly Compressed Data (CWE-409) in Kibana can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user holding Streams management privileges could supply specially crafted content that expands to a far larger volume of data during processing, exhausting the memory available to Kibana. The Kibana process is terminated by the host and remains unavailable to all users until the service is restarted.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Elastic Kibana
PublishedSep 1, 2026
First seenSep 1, 2026
Weakness typeCWE-409CWE-409
How to fix
Update
- elastic kibana8.19.21, 9.4.6, 9.5.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| elastic kibana | 8.19.0 ≤ v < 8.19.21, 9.0.0 ≤ v < 9.4.6, 9.5.0 ≤ v < 9.5.2 | 8.19.21, 9.4.6, 9.5.2 |
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