CVE-2026-72666

Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to unauthorized query execution against Elastic Agents that are assigned to a Kibana space the requesting user has no access to, via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). A user who is authorized to run Osquery live queries in one space can have a query carried out on hosts belonging to another space, resulting in disclosure of information from those hosts to the Osquery results data stream.

CVSS v3 6.8 MEDIUM

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://discuss.elastic.co/t/kibana-9-4-5-security-update-esa-2026-97/389537	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-08-13 20:17

Updated : 2026-09-02 14:11

NVD link : CVE-2026-72666

Mitre link : CVE-2026-72666

CVE.ORG link : CVE-2026-72666

JSON object : View

Products Affected

elastic

kibana

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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