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Kibana CVE-2026-72660

| EUVDEUVD-2026-58271 MEDIUM
Uncaught Exception (CWE-248)
2026-08-13 elastic GHSA-7p5f-mrpf-cqr2
Denial Of Service 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

Network-reachable with low complexity; PR:L required since a valid authenticated session is mandatory; availability is fully impacted via process termination, with no confidentiality or integrity effect.

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 - 20:09 vuln.today
CVE Published
Aug 13, 2026 - 19:12 cve.org
MEDIUM 6.5

DescriptionCVE.org

Uncaught Exception (CWE-248), resulting from Improper Input Validation (CWE-20), in Kibana can lead to denial of service via Input Data Manipulation (CAPEC-153). An authenticated user holding only low-privileged access can cause an internal error condition in Kibana by supplying specially crafted data. The resulting error is raised on an execution path so it propagates as an uncaught exception and terminates the Kibana process. Kibana is unavailable to all users until the service is restarted, and the condition can be triggered repeatedly.

AnalysisAI

Denial of service in Kibana allows an authenticated low-privileged user to crash the entire Kibana process by submitting specially crafted input data. The crafted payload triggers an uncaught exception (CWE-248) on a critical execution path, causing Kibana to terminate and become unavailable to all users until manually restarted. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Exploitation requires a valid authenticated session in Kibana with at minimum low-privileged access (PR:L per CVSS vector). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H) accurately reflects the threat model: network-reachable, low complexity, requiring only low-privileged authentication, with full availability impact confined to the Kibana process itself (S:U). … 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 The primary fix is to upgrade Kibana to version 8.19.20, 9.3.8, or 9.4.5 as documented in Elastic security advisory ESA-2026-101 at https://discuss.elastic.co/t/kibana-8-19-20-9-3-8-and-9-4-5-security-update-esa-2026-101/389517. … Detailed patch versions, workarounds, and compensating controls in full report.
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Same weakness CWE-248 – Uncaught Exception

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CVE-2026-72660 vulnerability details – vuln.today
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