Vulnerability Details CVE-2026-56151
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.
Exploit prediction scoring system (EPSS) score
CVSS Severity
CVSS v3 Score 6.5