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Kibana CVE-2026-72653

| EUVDEUVD-2026-58277 MEDIUM
Allocation of Resources Without Limits or Throttling (CWE-770)
2026-08-13 elastic GHSA-5642-j255-rj32
Denial Of Service Microsoft Elastic Kibana
6.5
CVSS 3.1 · Vendor: elastic
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Severity by source

Vendor (elastic) PRIMARY
6.5 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
vuln.today AI
6.5 MEDIUM

Kibana is network-accessible; any authenticated maintenance window manager can trigger it with no complexity; only availability is impacted via process exhaustion.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (elastic).

CVSS VectorVendor: elastic

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

2
Analysis Generated
Aug 13, 2026 - 20:13 vuln.today
CVE Published
Aug 13, 2026 - 19:13 cve.org
MEDIUM 6.5

DescriptionCVE.org

Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user who is authorized to manage maintenance windows could submit a specially crafted, malformed payload that causes the Kibana process to consume excessive resources. Kibana becomes unresponsive for all users and does not recover without manual intervention.

AnalysisAI

Resource exhaustion in Elastic Kibana allows an authenticated user who holds maintenance window management privileges to crash the Kibana process for all users by submitting a specially crafted malformed payload. The Kibana process consumes unbounded resources and becomes fully unresponsive, requiring manual operator intervention to restore service - there is no automatic recovery. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Execution
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Vulnerability AssessmentAI

Exploitation Exploitation requires an active, authenticated Kibana session belonging to a user who has been explicitly granted the 'manage maintenance windows' privilege - this is not a default low-privilege capability and must be assigned by an administrator. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H yields a base score of 6.5 (Medium), which accurately reflects the risk profile. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upgrade Kibana to a patched release: 8.19.19, 9.3.8, or 9.4.4, as detailed in Elastic security advisory ESA-2026-108 at https://discuss.elastic.co/t/kibana-8-19-19-9-3-8-9-4-4-security-update-esa-2026-108/389514. … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-72653 vulnerability details – vuln.today
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