CVE-2026-78598

EUVD-2026-70059

02.09.2026, 15:17

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.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
elastic	CNA	5.4 MEDIUM	NETWORK	LOW	LOW	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Base Score

CVSS 3.x

EPSS Score

Percentile: Unknown

Early Detection

Affected products identified ahead of NVD analysis through intelligence sources.

Vendor	Product	Version	Source
elastic	kibana	8.0.0 ≤ 𝑥 ≤ 8.19.18	CNA
elastic	kibana	9.0.0 ≤ 𝑥 ≤ 9.3.7	CNA
elastic	kibana	9.4.0 ≤ 𝑥 ≤ 9.4.3	CNA

Common Weakness Enumeration

CWE-863 - Incorrect Authorization
The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.

Vulnerability Media Exposure

[GERMAN] Kibana: Mehrere Schwachstellen
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Kibana ausnutzen, um seine Privilegien zu erhöhen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren oder offenzulegen oder einen Denial-of-Service-Zustand auszulösen.
Published: 2026-09-01T22:00:00+00:00

References

https://discuss.elastic.co/t/kibana-8-19-19-9-3-8-9-4-4-security-update-esa-2026-156/390111