CVE-2026-78597CWE-862broken-access-control

CVE-2026-78597

Medium · published September 2, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
20.1
In the wild
Unconfirmed
What it is

Missing Authorization (CWE-862) in the Kibana Entity Store feature can lead to unauthorized credential creation via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). An authenticated user holding only low-privilege Security feature access could invoke an administrative operation that creates and persists Elasticsearch API keys under the caller's identity, bypassing the elevated cluster and Kibana privileges that the documented Entity Store setup flow requires.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00287 · 20.1th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-09-02T00:17Z
Affected products (2)
ProductVersionsFixed in
elastic/kibana≥ 8.0.0, < 8.19.218.19.21
elastic/kibana≥ 9.0.3, < 9.4.69.4.6
References (1)
https://discuss.elastic.co/t/kibana-8-19-21-9-4-6-security-update-esa-2026-155/390072 · [email protected]
EPSS history
Timeline
  • 03 SEP 03:32Z
    EPSS moved — → 0%
    epss
  • 01 SEP 19:20Z
    Missing Authorization in Kibana Entity Store Leading to Unauthorized API Key Creation
    cvelistv5