PT-2026-26324 · Elastic · Kibana

Published 2026-03-19 · Updated 2026-03-19 · CVE-2026-26939

Mitre

CVSS v3.1

6.5

Medium

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

Missing Authorization (CWE-862) in Kibana’s server-side Detection Rule Management can lead to Unauthorized Endpoint Response Action Configuration (host isolation, process termination, and process suspension) via CAPEC-1 (Accessing Functionality Not Properly Constrained by ACLs). This requires an authenticated attacker with rule management privileges.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-26939

Affected Products

Kibana

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-26939 · Security Note
• https://discuss.elastic.co/t/kibana-8-19-12-9-2-6-9-3-1-security-update-esa-2026-19/385530 · Note