Incorrect Authorization in Kibana Fleet Leading to Privilege Escalation
Description:
Incorrect Authorization (CWE-863) in Kibana Fleet can lead to privilege escalation via Privilege Abuse (CAPEC-122). Fleet restricts some callers to managing integration policies for one specific integration. When an existing integration policy was updated, that restriction was evaluated against the integration recorded on the stored policy rather than against the replacement integration supplied with the update. An authenticated user holding only the Elastic Defend endpoint policy management privilege was therefore able to convert an endpoint policy they administer into a policy for a different integration, and to supply that integration's configuration at the same time.
Affected Versions:
- 8.x: All versions from 8.19.0 up to and including 8.19.19
- All versions from 9.0.0 up to and including 9.4.4
- Version 9.5.0
Affected Configurations:
All configurations are affected.
Solutions and Mitigations:
The issue is resolved in versions 8.19.20, 9.4.5, and 9.5.1.
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: High ( 7.1 ) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
CVE ID: CVE-2026-72630
Problem Type: CWE-863 - Incorrect Authorization
Impact: CAPEC-122 - Privilege Abuse