Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 21.7%
CVSS Severity
CVSS v3 Score 6.8
Products affected by CVE-2026-72666
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cpe:2.3:a:elastic:kibana:9.1.0
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cpe:2.3:a:elastic:kibana:9.1.1
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cpe:2.3:a:elastic:kibana:9.1.10
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cpe:2.3:a:elastic:kibana:9.1.2
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cpe:2.3:a:elastic:kibana:9.1.3
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cpe:2.3:a:elastic:kibana:9.1.4
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cpe:2.3:a:elastic:kibana:9.1.5
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cpe:2.3:a:elastic:kibana:9.1.6
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cpe:2.3:a:elastic:kibana:9.1.7
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cpe:2.3:a:elastic:kibana:9.1.8
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cpe:2.3:a:elastic:kibana:9.1.9
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cpe:2.3:a:elastic:kibana:9.2.0
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cpe:2.3:a:elastic:kibana:9.2.1
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cpe:2.3:a:elastic:kibana:9.2.2
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cpe:2.3:a:elastic:kibana:9.2.3
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cpe:2.3:a:elastic:kibana:9.2.4
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cpe:2.3:a:elastic:kibana:9.2.5
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cpe:2.3:a:elastic:kibana:9.2.6
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cpe:2.3:a:elastic:kibana:9.2.7
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cpe:2.3:a:elastic:kibana:9.2.8
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cpe:2.3:a:elastic:kibana:9.3.0
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cpe:2.3:a:elastic:kibana:9.3.2
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cpe:2.3:a:elastic:kibana:9.3.3
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cpe:2.3:a:elastic:kibana:9.3.4
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cpe:2.3:a:elastic:kibana:9.3.5
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cpe:2.3:a:elastic:kibana:9.3.6
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cpe:2.3:a:elastic:kibana:9.3.7
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cpe:2.3:a:elastic:kibana:9.3.8
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cpe:2.3:a:elastic:kibana:9.4.0
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cpe:2.3:a:elastic:kibana:9.4.1
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cpe:2.3:a:elastic:kibana:9.4.2
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cpe:2.3:a:elastic:kibana:9.4.3
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cpe:2.3:a:elastic:kibana:9.4.4