CVE-2026-42397 — Allocation of Resources Without Limits or Throttling in Kibana Leading to Denial of Service

CVE-2026-42397

Allocation of Resources Without Limits or Throttling in Kibana Leading to Denial of Service PUBLISHED

Description (CNA)

Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user can submit a specially crafted request to affected Entity Analytics endpoints containing an oversized input value that causes excessive resource consumption, which may render Kibana unavailable.

Affected (CNA)

Vendor / product	Versions
Elastic / Kibana	affected 9.4.0 through 9.4.3; affected 9.3.0 through 9.3.6

CWE

CWE-770

References

https://discuss.elastic.co/t/kibana-9-3-7-9-4-4-security-update-esa-2026-55/388554/1

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.