CVE-2026-72664

Summary

Missing Authorization (CWE-862) in Kibana can lead to unauthorized execution of Elastic Defend response actions on managed hosts via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). A Kibana user who holds only detection rule authoring privileges for the Elastic Security solution can associate automated endpoint response actions with a detection rule, even though the dedicated Endpoint response action privileges that govern those capabilities (host isolation, process operations, and execute operations) have not been granted to that user. When such a rule generates alerts, the associated response actions are carried out against the matching hosts.

Affected Software

Weaknesses

• CWE-862: CWE-862 Missing Authorization

References

• https://discuss.elastic.co/t/kibana-8-19-20-and-9-4-5-security-update-esa-2026-95/389527

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