Execution with Unnecessary Privileges in Kibana Leading to Information Disclosure
Execution with Unnecessary Privileges (CWE-250) in the Kibana machine learning feature can lead to information disclosure via Privilege Abuse (CAPEC-122). An operation available to users holding only read access to the machine learning feature was performed with an internal service identity rather than the identity of the requesting user. Such a user could therefore receive data from Elasticsearch indices they are not authorized to read. No Elasticsearch cluster or index privileges are required.
Affected Versions:
- 8.x: All versions from 8.0.0 up to and including 8.19.20
- 9.x:
- All versions from 9.0.0 up to and including 9.4.5
- All versions from 9.5.0 up to and including 9.5.1
Affected Configurations:
All configurations are affected.
Solutions and Mitigations:
The issue is resolved in Kibana versions 8.19.21, 9.4.6, and 9.5.2.
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 ( 6.5 ) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVE ID: CVE-2026-72654
Problem Type: CWE-250 - Execution with Unnecessary Privileges
Impact: CAPEC-122 - Privilege Abuse