CVE-2026-78596CWE-862broken-access-control

CVE-2026-78596

Medium · published September 3, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
18.0
In the wild
Unconfirmed
What it is

Missing Authorization in Kibana Leading to Unauthorized Modification of Data / Missing Authorization (CWE-862) in Kibana can lead to unauthorized modification of data via Privilege Abuse (CAPEC-122). An authenticated user holding Security read-level access in a single Kibana space could trigger Entity Analytics migration operations that perform privileged writes across all Kibana spaces, regardless of that user's actual access scope.

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:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00268 · 18.0th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-09-03T23:17Z
References (1)
https://discuss.elastic.co/t/kibana-8-19-21-9-4-6-9-5-3-security-update-esa-2026-154/390161 · [email protected]
EPSS history
Timeline
  • 05 SEP 03:44Z
    EPSS moved — → 0%
    epss
  • 03 SEP 18:35Z
    Missing Authorization in Kibana Leading to Unauthorized Cross-Space Write Operations
    cvelistv5