Missing authorization in Kibana - CVE-2026-26939
Published: March 19, 2026
Vulnerability identifier: #VU124150
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-26939
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Elastic Stack
Affected software:
Kibana
Kibana
Detailed vulnerability description
The vulnerability allows a remote user to bypass authorization checks.
The vulnerability exists due to missing authorization checks in the server-side detection rule management feature. A remote user with rule management privileges can modify configuration of endpoint response action such as host isolation, process termination, and process suspension.
How to mitigate CVE-2026-26939
Install updates from vendor's website.