Privilege Escalation Vulnerability in Kibana's Fleet Plugin
CVE-2026-4498

7.7HIGH

Key Information:

Vendor

Elastic
Status
Kibana
Vendor
CVE Published:
8 April 2026

What is CVE-2026-4498?

A vulnerability in Kibana's Fleet plugin allows authenticated users with Fleet sub-feature privileges to access index data that exceeds their authorized scope in Elasticsearch. This privilege abuse can lead to unauthorized data exposure, highlighting the need for adequate security measures and user permission management within Kibana installations.

Affected Version(s)

Kibana 8.0.0 <= 8.19.13

References

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

CVSS V3.1

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.