What’s Vulnerable › Vulnerabilities
CVE-2026-78598: Incorrect Authorization in Kibana Leading to Unauthorized Cross-Space Exposure of Machine Learning Job Data
- Severity: medium (CVSS 5.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-02 · updated 2026-09-03
- Weakness: CWE-863
Description
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 products
- Kibana: from 8.0.0 before 8.19.19; from 9.0.0 before 9.3.8; from 9.4.0 before 9.4.4 — fixed in 8.19.19, 9.3.8, 9.4.4
How to fix
Upgrade to a fixed version: Kibana 8.19.19, 9.3.8, 9.4.4. Check the vendor advisory for mitigations.
References
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