PT-2026-26324 · Elastic · Kibana

Ismisepaul + 1 · Published 2026-03-19 · Updated 2026-03-23 · CVE-2026-26939

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:H/A:N

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

Description A missing authorization issue (CWE-862) exists in Kibana’s server-side Detection Rule Management. This can allow an authenticated attacker with rule management privileges to perform unauthorized endpoint response actions, including host isolation, process termination, and process suspension, exploiting CAPEC-1 (Accessing Functionality Not Properly Constrained by ACLs). The issue involves improper access control restrictions, potentially allowing unauthorized configuration changes.

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

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-26939

Affected Products

Kibana

References · 4

• 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 · Vendor Advisory
• https://twitter.com/CVEnew/status/2036024192613962171 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2034736618129522937 · Twitter Post