CVE-2026-56151
Improper Input Validation in Kibana Leading to Denial of Service
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
Improper Input Validation (CWE-20) in Kibana can lead to a denial of service via Input Data Manipulation (CAPEC-153). An authenticated user can submit a specially crafted Fleet policy input that is not correctly validated, which can render Fleet agent, server, and policy management functionality unavailable.
| CWE | CWE-20 |
| Vendor | elastic |
| Product | kibana |
| Published | Jul 1, 2026 |
| Last Updated | Jul 1, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
Elastic / Kibana
9.0.0 ≤ 9.3.5 8.0.0 ≤ 8.19.16 9.4.0 ≤ 9.4.2