CVE-2026-78598CWE-863broken-access-control

CVE-2026-78598

Medium · published September 2, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
14.0
In the wild
Unconfirmed
What it is

Incorrect Authorization (CWE-863) in the Kibana machine learning feature can lead to information disclosure via Exploiting Incorrectly Configured Access Control Security Levels (CAPEC-180). An authenticated user holding machine learning job management privileges within a single Kibana space could cause a job's saved object to become accessible across all spaces in the Kibana instance, without holding access rights to those additional spaces.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00238 · 14.0th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-09-02T19:17Z
Affected products (3)
ProductVersionsFixed in
elastic/kibana≥ 8.0.0, < 8.19.198.19.19
elastic/kibana≥ 9.0.0, < 9.3.89.3.8
elastic/kibana≥ 9.4.0, < 9.4.49.4.4
References (1)
https://discuss.elastic.co/t/kibana-8-19-19-9-3-8-9-4-4-security-update-esa-2026-156/390111 · [email protected]
EPSS history
Timeline
  • 04 SEP 03:44Z
    EPSS moved — → 0%
    epss
  • 02 SEP 14:43Z
    Incorrect Authorization in Kibana Leading to Unauthorized Cross-Space Exposure of Machine Learning Job Data
    cvelistv5