What’s Vulnerable › Vulnerabilities
CVE-2026-33464: 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: 2026-05-28 · updated 2026-10-14
- Weakness: CWE-400
Description
Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user holding a low-privileged role can submit a specially crafted, oversized payload to an internal Kibana API, causing the Kibana process to exhaust available resources and become unresponsive to all users until the service recovers or is restarted.
Affected products
- Kibana: from 8.0.0 before 8.19.16; from 9.0.0 before 9.3.5; 9.4.0 — fixed in 8.19.16, 9.3.5
How to fix
Upgrade to a fixed version: Kibana 8.19.16, 9.3.5. Check the vendor advisory for mitigations.
References
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