CVE-2026-26939 — Missing Authorization in Kibana

CWE-862 — Missing AuthorizationCWE-1220 — Insufficient Granularity of Access Control5 documents5 sources
Severity
6.5MEDIUMNVD
EPSS
0.0%
top 91.19%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Elastic Kibana
Timeline
PublishedMar 19

Description

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NExploitability: 2.8 | Impact: 3.6

Affected Packages2 packages

▶NVDelastic/kibana8.0.0 — 8.19.12+2
▶CVEListV5elastic/kibana9.0.0 — 9.2.5+2

🔴Vulnerability Details

2
GHSA
GHSA-x4hf-rw83-jxhf: Missing Authorization (CWE-862) in Kibana’s server-side Detection Rule Management can lead to Unauthorized Endpoint Response Action Configuration (hos↗2026-03-19
▶
CVEList
Missing Authorization in Kibana Leading to Unauthorized Endpoint Response Action Configuration↗2026-03-19
▶

📋Vendor Advisories

1
Red Hat
Kibana: Kibana: Unauthorized system control via missing authorization↗2026-03-19
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-26939 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶
CVE-2026-26939 — Missing Authorization in Elastic | cvebase