CVE-2026-56151CWE-20

Improper Input Validation in Kibana Leading to Denial of Service

Medium · published July 1, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
39.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00472 · 39.8th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2026-07-01T16:29Z
EPSS history
Timeline
  • 01 JUL 16:29Z
    Improper Input Validation in Kibana Leading to Denial of Service
    cvelistv5