Incorrect authorization in Kibana - CVE-2026-82298
Published: September 3, 2026
Vulnerability identifier: #VU146877
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-82298
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to incorrect authorization in Kibana when Fleet and agent communication message signing is enabled. A remote user can exploit incorrectly configured access control security levels to cause a denial of service.
Only configurations with Fleet and agent communication message signing enabled are vulnerable.
Affected software
Kibana
How to mitigate CVE-2026-82298
Install security update from vendor's website.
Kibana - addressed in versions 8.19.21, 9.4.6, 9.5.3