CVE-2026-78603mediumCWE-862

CVE-2026-78603: medium-severity vulnerability in Elastic Kibana

Missing Authorization in Kibana Leading to Unauthorized Disclosure of Fleet Deployment Metadata

Published

Follow this CVE+ Monitor Kibana

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 4.3epss 0.3%
Missing Authorization (CWE-862) in Kibana can lead to information disclosure via Exploiting Incorrectly Configured Access Control Security Levels (CAPEC-180). An authenticated user holding minimal Elasticsearch privileges could bypass Kibana feature authorization and space access controls, resulting in the unauthorized disclosure of Fleet deployment metadata from the default Kibana space.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected products
Elastic · Kibana
Related CVEs — Elastic Kibana

In the same product, most dangerous first.

CVE-2019-7609CRITICALCVE-2019-7609EPSS 95.3%KEVCVE-2018-17246—CVE-2018-17246EPSS 84.3%CVE-2025-25014CRITICALKibana arbitrary code execution via prototype pollutionEPSS 22.3%CVE-2020-7012—CVE-2020-7012EPSS 18.2%CVE-2019-7610—CVE-2019-7610EPSS 3.9%CVE-2019-7616—CVE-2019-7616EPSS 2.4%