Kibana CVE-2026-72661: Missing Auth Enables Data Disclosure via Unconstrained ACLs
CVE-2026-72661 Published on August 13, 2026
Missing Authorization in Kibana Leading to Information Disclosure
Missing Authorization (CWE-862) in Kibana can lead to information disclosure via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). An internal Kibana data retrieval capability used by Elastic Defend endpoint response actions did not enforce the Security Solution and endpoint privileges that its user-facing equivalents require, and it retrieved data with elevated internal permissions rather than the permissions of the requesting user. As a result, an authenticated low-privileged Kibana user with no Security Solution privileges, endpoint privileges and no Elasticsearch privileges on the underlying data, could read endpoint response action records and the corresponding response content returned by managed hosts.
Vulnerability Analysis
CVE-2026-72661 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVE-2026-72661 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-72661
Want to know whenever a new CVE is published for Elastic Kibana? stack.watch will email you.
Affected Versions
Elastic Kibana:- Version 8.12.0, <= 8.19.18 is affected.
- Version 9.0.0, <= 9.3.7 is affected.
- Version 9.4.0, <= 9.4.3 is affected.