# Kibana 8.19.20, and 9.4.5 Security Update (ESA-2026-92)

**URL:** <https://discuss.elastic.co/t/kibana-8-19-20-and-9-4-5-security-update-esa-2026-92/389526>\
**Category:** Security Announcements\
**Created:** [August 13, 2026, 10:48am UTC](https://discuss.elastic.co/t/kibana-8-19-20-and-9-4-5-security-update-esa-2026-92/389526 "2026-08-13T10:48:27Z")\
**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, 10:48am UTC](https://discuss.elastic.co/t/kibana-8-19-20-and-9-4-5-security-update-esa-2026-92/389526/1 "2026-08-13T10:48:28Z")

</div>

**Missing Authorization in Kibana Machine Learning Leading to Cross-Space Information Disclosure and Unauthorized Data Modification**

**Description:**  
Missing Authorization (CWE-862) in Kibana can lead to cross-space information disclosure and unauthorized data modification via Privilege Abuse (CAPEC-122). Kibana Machine Learning carries out its Elasticsearch operations with elevated internal permissions and relies on a per-request space filter to keep the machine learning data of one space separated from another. Part of the Machine Learning functionality did not apply that filter, so operations issued from one space were carried out against the machine learning data of every space in the deployment.

**Affected Versions:**

> - All versions from 8.0.0 up to and including 8.19.19
> - All versions from 9.0.0 up to and including 9.4.4

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

**Solutions and Mitigations:**

The issue is resolved in versions 8.19.20, and 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: High ( 7.1 ) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N  
**CVE ID:** CVE-2026-72675  
**Problem Type:** CWE-862 - Missing Authorization  
**Impact:** CAPEC-122 - Privilege Abuse