Denial of Service Vulnerability in Kibana by Elastic
CVE-2026-26934

6.5MEDIUM

Key Information:

Vendor

Elastic
Status
Kibana
Vendor
CVE Published:
26 February 2026

What is CVE-2026-26934?

An input validation flaw in Kibana allows an authenticated user with view-only access to manipulate input data maliciously. This manipulation can lead to the application consuming excessive resources, causing it to become unresponsive or crash. The vulnerability highlights the importance of robust input validation mechanisms to prevent Denial of Service through specially crafted payloads.

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Affected Version(s)

Kibana 8.18.0 <= 8.19.11

Kibana 9.0.0 <= 9.2.5

Kibana 9.3.0

References

https://discuss.elastic.co/t/kibana-8-19-12-9-2-6-9-3-1-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

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