CVE-2026-78598 — Incorrect Authorization in Kibana Leading to Unauthorized Cross-Space Exposure of Machine Learning Job Data

CVE-2026-78598

Incorrect Authorization in Kibana Leading to Unauthorized Cross-Space Exposure of Machine Learning Job Data PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Elastic / Kibana	affected 8.0.0 through 8.19.18; affected 9.0.0 through 9.3.7; affected 9.4.0 through 9.4.3

CWE

CWE-863

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.