CVE-2026-33464

Uncontrolled Resource Consumption in Kibana Leading to Denial of Service

CVSS 6.5 MEDIUMEPSS 0.2%CWE-400

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.5EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

28 May 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

Elastic · Kibana

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References

https://discuss.elastic.co/t/kibana-8-19-16-9-3-5-9-4-1-security-update-esa-2026-32/386548