# Kibana 9.4.5 Security Update (ESA-2026-97)

**URL:** <https://discuss.elastic.co/t/kibana-9-4-5-security-update-esa-2026-97/389537>\
**Category:** Security Announcements\
**Created:** [August 13, 2026, 10:49am UTC](https://discuss.elastic.co/t/kibana-9-4-5-security-update-esa-2026-97/389537 "2026-08-13T10:49:03Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ikakavas](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ikakavas/32/34430_2.png) [@ikakavas](https://discuss.elastic.co/u/ikakavas)\
**Post date:** [August 13, 2026, 10:49am UTC](https://discuss.elastic.co/t/kibana-9-4-5-security-update-esa-2026-97/389537/1 "2026-08-13T10:49:03Z")

</div>

**Authorization Bypass Through User-Controlled Key in Kibana Leading to Unauthorized Query Execution on Managed Hosts**

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.

**Affected Versions:**

> - All versions from 9.1.0 up to and including 9.4.4

**Affected Configurations:**  
All configurations are affected.

**Solutions and Mitigations:**

The issue is resolved in versions 9.4.5.

**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: Medium ( 6.8 ) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N  
**CVE ID:** CVE-2026-72666  
**Problem Type:** CWE-639 - Authorization Bypass Through User-Controlled Key  
**Impact:** CAPEC-1 - Accessing Functionality Not Properly Constrained by ACLs