CVE-2026-56151
Improper Input Validation in Kibana Leading to Denial of Service
Description
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.
INFO
Published Date :
July 1, 2026, 4:29 p.m.
Last Modified :
July 1, 2026, 4:29 p.m.
Remotely Exploit :
Yes !
Source :
elastic
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 271b6943-45a9-4f3a-ab4e-976f3fa05b5a | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Apply vendor updates for Kibana.
- Validate all Fleet policy inputs.
- Monitor system for availability.
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CVE-2026-56151 vulnerability anywhere in the article.