CVE-2026-78603CWE-862broken-access-control

CVE-2026-78603

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 Kibana can lead to information disclosure via Exploiting Incorrectly Configured Access Control Security Levels (CAPEC-180). An authenticated user holding minimal Elasticsearch privileges could bypass Kibana feature authorization and space access controls, resulting in the unauthorized disclosure of Fleet deployment metadata from the default Kibana space.

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≥ 9.0.0, < 9.4.69.4.6
elastic/kibanaall versions—
References (1)
https://discuss.elastic.co/t/kibana-9-4-6-9-5-1-security-update-esa-2026-149/390069 · [email protected]
EPSS history
Timeline
  • 03 SEP 03:32Z
    EPSS moved — → 0%
    epss
  • 01 SEP 19:20Z
    Missing Authorization in Kibana Leading to Unauthorized Disclosure of Fleet Deployment Metadata
    cvelistv5