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CVE-2026-49094

Uncontrolled Resource Consumption in Kibana Leading to Denial of Service

Published: May 28, 2026Updated: Jun 1, 2026 Sources: CVE List NVDCWE-400
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.2%
Top 85.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-400

Affected Products

KibanaElasticDatabases
kibanaelasticDatabases
elasticcommercialUSDatabasesaka elasticsearch co., elastic.co

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://discuss.elastic.co/t/kibana-8-19-16-security-update-esa-2026-39/386561/1
discuss.elastic.co

Timeline

Published
May 28, 2026
Last Updated
Jun 1, 2026

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