CVE-2026-78598

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.

  • Published Sep 2, 2026
  • CVSS 5.4 medium
  • 0.2% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-78598 at the National Vulnerability Database