CVE-2026-72666CWE-639

CVE-2026-72666

Medium · published August 14, 2026

CVSS v3.1
6.8
EPSS
0%
Percentile
30.0
In the wild
Unconfirmed
What it is

Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to unauthorized query execution against Elastic Agents that are assigned to a Kibana space the requesting user has no access to, via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). A user who is authorized to run Osquery live queries in one space can have a query carried out on hosts belonging to another space, resulting in disclosure of information from those hosts to the Osquery results data stream.

The record
Technical detail
CVSS v3.1
6.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00372 · 30.0th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-08-14T00:17Z
Affected products (1)
ProductVersionsFixed in
elastic/kibana≥ 9.1.0, < 9.4.59.4.5
References (1)
https://discuss.elastic.co/t/kibana-9-4-5-security-update-esa-2026-97/389537 · [email protected]
EPSS history
Timeline
  • 13 AUG 19:11Z
    Authorization Bypass Through User-Controlled Key in Kibana Leading to Unauthorized Query Execution on Managed Hosts
    cvelistv5