Incorrect authorization in Kibana - CVE-2026-78598
Published: September 2, 2026
Vulnerability identifier: #VU146665
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-78598
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose machine learning job data across Kibana spaces.
The vulnerability exists due to incorrect authorization in the Kibana machine learning feature when managing machine learning jobs within a single Kibana space. A remote user can cause a job's saved object to become accessible across all spaces in the Kibana instance to disclose machine learning job data across Kibana spaces.
Deployments are affected only when Kibana spaces are in use and one or more non-administrator users have been granted machine learning job management privileges within a space.
Affected software
Kibana
How to mitigate CVE-2026-78598
Install security update from vendor's website.
Kibana - addressed in versions 8.19.19, 9.3.8, 9.4.4