CVE-2026-49094 Details
Description
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.
A denial-of-service vulnerability has been identified in Kibana versions 8.0.0 prior to 8.19.15. This issue arises from uncontrolled resource consumption, where an authenticated user with viewer-level access can send requests with oversized input values to an analytics collections management endpoint. As Kibana processes these requests, it consumes excessive CPU and memory resources, causing the application to become unavailable to all users until manually recovered. This vulnerability affects self-managed and Elastic Cloud Hosted Kibana deployments with the behavioral analytics collections feature, but not Elastic Cloud Serverless.
Users can upgrade to Kibana version 8.19.16 to address this vulnerability. For those unable to upgrade, it is recommended to restrict access to the behavioral analytics collections feature by limiting the relevant Kibana feature privilege.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 29, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://discuss.elastic.co/t/kibana-8-19-16-security-update-esa-2026-39/386561/1 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-400 | Uncontrolled Resource Consumption | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| elastic kibana | >= 8.0.0, < 8.19.16 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 21, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 1, 2026 | Initial Analysis | [email protected] |
| May 28, 2026 | New CVE Received | [email protected] |