# Kibana 8.19.16 Security Update (ESA-2026-39) **URL:** https://discuss.elastic.co/t/kibana-8-19-16-security-update-esa-2026-39/386561 **Category:** Security Announcements **Created:** [May 28, 2026, 7:26pm UTC](https://discuss.elastic.co/t/kibana-8-19-16-security-update-esa-2026-39/386561 "2026-05-28T19:26:30Z") **Posts on this page:** 1 **Showing post:** 1
### Author: ![ismisepaul](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ismisepaul/32/102235_2.png) [@ismisepaul](https://discuss.elastic.co/u/ismisepaul) #### Post date: [May 28, 2026, 7:26pm UTC](https://discuss.elastic.co/t/kibana-8-19-16-security-update-esa-2026-39/386561/1 "2026-05-28T19:26:30Z")
**Uncontrolled Resource Consumption in Kibana Leading to Denial of Service** Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user with viewer-level access can submit a request containing an oversized input value to an analytics collections management endpoint. Kibana will consume excessive CPU and memory resources while processing the request. This results in Kibana becoming unavailable to all users until the service is manually recovered. **Affected Versions:** - 8.x: All versions from 8.0.0 up to and including 8.19.15 **Affected Configurations:** - Self-managed and Elastic Cloud Hosted Kibana deployments with the behavioral analytics collections feature available are affected. This vulnerability does not affect Elastic Cloud Serverless. **Solutions and Mitigations:** The issue is resolved in versions 8.19.16. **For Users that Cannot Upgrade:** - Restrict access to the behavioral analytics collections feature by limiting the relevant Kibana feature privilege. **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 ( 6.5 ) - AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H **CVE ID:** CVE-2026-49094 **Problem Type:** CWE-400 - Uncontrolled Resource Consumption **Impact:** CAPEC-130 - Excessive Allocation --- _[View the full topic](https://discuss.elastic.co/t/kibana-8-19-16-security-update-esa-2026-39/386561)._