Cross-space ML job data exposure via authorization scope
Published Sep 2, 2026 · Updated Sep 2, 2026
Incorrect authorization in Elastic Kibana 8.0.0 through 8.19.18 allows remote authenticated users to expose ML job data across spaces. The machine learning feature lets a space-scoped job manager make a job saved object accessible to every space instead of preserving its namespace boundary. Exposure requires Kibana spaces and machine learning job management privileges granted to a non-administrator within one space.
Summary
What happened
Incorrect authorization in Elastic Kibana 8.0.0 through 8.19.18 allows remote authenticated users to expose ML job data across spaces. The machine learning feature lets a space-scoped job manager make a job saved object accessible to every space instead of preserving its namespace boundary. Exposure requires Kibana spaces and machine learning job management privileges granted to a non-administrator within one space.
The record
- CVE
- CVE-2026-78598
- Published
- Sep 2, 2026
- Updated
- Sep 2, 2026
- Vendor
- Elastic
- Product
- Kibana
- Classifications
- CWE-863, CAPEC-180, T1213
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 2, 2026CVE publishedPublication date reported by the CVE source.
- Sep 2, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=8.0.0 <=8.19.18
- Affected versionversion=9.0.0 <=9.3.7
- Affected versionversion=9.4.0 <=9.4.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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