CVE-2026-78596 — Missing Authorization in Kibana Leading to Unauthorized Cross-Space Write Operations

CVE-2026-78596

Missing Authorization in Kibana Leading to Unauthorized Cross-Space Write Operations PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Elastic / Kibana	affected 8.18.3 through 8.19.20; affected 9.0.3 through 9.4.5; affected 9.5.0 through 9.5.2

CWE

CWE-862

References

https://discuss.elastic.co/t/kibana-8-19-21-9-4-6-9-5-3-security-update-esa-2026-154/390161

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.