What’s Vulnerable › Vulnerabilities
CVE-2026-33459: Uncontrolled Resource Consumption in Kibana Leading to Denial of Service
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-04-08 · updated 2026-07-24
- Weakness: CWE-400
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.
Affected products
- Kibana: from 8.15.0 before 8.19.14; from 9.0.0 before 9.2.8; from 9.3.0 before 9.3.3 — fixed in 8.19.14, 9.2.8, 9.3.3
How to fix
Upgrade to a fixed version: Kibana 8.19.14, 9.2.8, 9.3.3. Check the vendor advisory for mitigations.
References
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