PT-2026-54866 · Elastic · Kibana

Published 2026-07-01 · Updated 2026-07-01 · CVE-2026-56151

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Kibana (affected versions not specified)

Description Improper input validation in the Fleet policy management functionality allows an authenticated user to submit specially crafted input. This can lead to a denial of service, rendering the Fleet agent, server, and policy management features unavailable.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2026-56151

Affected Products

Kibana

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-56151 · Security Note
• https://discuss.elastic.co/t/kibana-8-19-17-9-3-6-9-4-3-security-update-esa-2026-45 · Vendor Advisory
• https://twitter.com/VulmonFeeds/status/2072393846038593928 · Twitter Post