CVE-2026-49094: CWE-400 Uncontrolled Resource Consumption in Elastic Kibana
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.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-49094) in Elastic Kibana 8.0.0 allows an authenticated user with viewer-level privileges to trigger uncontrolled resource consumption (CWE-400) by submitting an excessively large input value to a specific analytics collections management endpoint. The excessive allocation of CPU and memory resources results in denial of service (CAPEC-130), rendering the Kibana service unavailable to all users until manual recovery is performed. The CVSS 3.1 base score is 6.5, reflecting a medium severity impact primarily on availability. No official patch or remediation level has been published by Elastic as of the provided data.
Potential Impact
The impact is denial of service caused by excessive CPU and memory consumption when processing oversized input values at a Kibana analytics collections management endpoint. This affects availability, making the Kibana service unavailable to all users until manual intervention restores service. There is no impact on confidentiality or integrity reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, monitor for unusual resource usage patterns and restrict viewer-level user actions where possible to limit exposure. Manual recovery is required after exploitation to restore service availability.
CVE-2026-49094: CWE-400 Uncontrolled Resource Consumption in Elastic Kibana
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.
CVSS v3.1
Score 6.5medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-49094) in Elastic Kibana 8.0.0 allows an authenticated user with viewer-level privileges to trigger uncontrolled resource consumption (CWE-400) by submitting an excessively large input value to a specific analytics collections management endpoint. The excessive allocation of CPU and memory resources results in denial of service (CAPEC-130), rendering the Kibana service unavailable to all users until manual recovery is performed. The CVSS 3.1 base score is 6.5, reflecting a medium severity impact primarily on availability. No official patch or remediation level has been published by Elastic as of the provided data.
Potential Impact
The impact is denial of service caused by excessive CPU and memory consumption when processing oversized input values at a Kibana analytics collections management endpoint. This affects availability, making the Kibana service unavailable to all users until manual intervention restores service. There is no impact on confidentiality or integrity reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, monitor for unusual resource usage patterns and restrict viewer-level user actions where possible to limit exposure. Manual recovery is required after exploitation to restore service availability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- elastic
- Date Reserved
- 2026-05-27T11:31:33.582Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a18aa34e29bf47b5027bf9b
Added to database: 05/28/2026, 20:48:52 UTC
Last enriched: 05/28/2026, 21:19:29 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 76
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