Improper Input Validation in Kibana by Elastic
CVE-2026-26935

6.5MEDIUM

Key Information:

Vendor

Elastic
Status
Kibana
Vendor
CVE Published:
26 February 2026

What is CVE-2026-26935?

An input validation flaw in Kibana's internal content connectors search endpoint can be exploited through malicious input data. This vulnerability can potentially disrupt service availability, leading to a Denial of Service. It highlights the critical need for robust input validation mechanisms to prevent unauthorized manipulation of data, ensuring the integrity and reliability of services.

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Affected Version(s)

Kibana 9.3.0

Kibana 8.4.0 <= 8.19.11

Kibana 9.0.0 <= 9.2.5

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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