Missing Authorization in Kibana Leading to Information Disclosure
Missing Authorization (CWE-862) in Kibana can lead to unauthorized cross-space information disclosure via user-supplied input that circumvents space-level access control.
Affected Versions:
- 9.4.x: All versions from 9.4.0 up to and including 9.4.3
Users on the 8.x release line are not affected by this vulnerability. The SLO health scan functionality that contains this vulnerability was introduced in Kibana 9.4.0 and is not present in 8.x. Users on the 9.5.x release line are also not affected, as the fix is included in the 9.5.0 release.
Affected Configurations:
- Kibana deployments with Service Level Objectives (SLO) features enabled in multi-space environments are affected. Any authenticated user holding slo_read privilege in at least one Kibana Space may be able to exploit this vulnerability.
Solutions and Mitigations:
The issue is resolved in version 9.4.4.
For Users that Cannot Upgrade:
- There are no workarounds for this vulnerability.
Indicators of Compromise (IOC)
No specific indicators of compromise have been identified for this vulnerability.
Elastic Cloud Serverless
Due to our continuous deployment and patching model, the vulnerability described in this security advisory was remediated in our Elastic Cloud Serverless offering before the public disclosure.
Severity: CVSSv3.1: Medium ( 4.3 ) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVE ID: CVE-2026-63262
Problem Type: CWE-862 - Missing Authorization