Denial of Service Vulnerability in Kibana by Elastic
CVE-2026-33459

6.5MEDIUM

Key Information:

Vendor

Elastic
Status
Kibana
Vendor
CVE Published:
8 April 2026

What is CVE-2026-33459?

An uncontrolled resource consumption vulnerability in Kibana allows authenticated users with access to the automatic import feature to cause denial of service. By submitting specially crafted requests with large input values, multiple concurrent requests can overwhelm backend services, leading to instability and unavailability of the Kibana deployment for all users.

Affected Version(s)

Kibana 9.3.0 <= 9.3.2

Kibana 8.15.0 <= 8.19.13

Kibana 9.0.0 <= 9.2.7

References

https://discuss.elastic.co/t/kibana-8-19-14-9-2-8-9-3-3-s...

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.