CVE-2026-33459
Uncontrolled Resource Consumption in Kibana Leading to Denial of Service
6.5
MEDIUM
CVSS 3.1
EPSS 0.05%
Description
Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user with access to the automatic import feature can submit specially crafted requests with excessively large input values. When multiple such requests are sent concurrently, the backend services become unstable, resulting in service disruption and deployment unavailability for all users.
How to fix CVE-2026-33459
To remediate CVE-2026-33459, upgrade the affected package to a fixed version below.
- —upgrade to 8.19.14 or later
- —upgrade to 8.19.14 or later
Is CVE-2026-33459 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- >= 8.0.0, < 8.19.14, >= 9.0.0, < 9.2.8, >= 9.3.0, < 9.3.3
- >= 8.0.0, < 8.19.14, >= 9.0.0, < 9.2.8, >= 9.3.0, < 9.3.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |