What’s Vulnerable › Vulnerabilities
CVE-2026-78583: Incorrect Authorization in Kibana Leading to Privilege Escalation
- Severity: high (CVSS 8.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-03 · updated 2026-09-08
- Weakness: CWE-863
Description
Incorrect Authorization (CWE-863) in Kibana can lead to privilege escalation via Input Data Manipulation (CAPEC-153). Elasticsearch cluster privilege declarations originating from integration packages were not validated before being used to mint credentials for enrolled Elastic Agents. A user holding Fleet management privileges could therefore cause every Elastic Agent on a targeted policy to receive a credential carrying arbitrarily elevated Elasticsearch cluster privileges, up to and including full cluster administration.
Affected products
- Kibana: from 8.0.0 before 8.19.21; from 9.0.0 before 9.4.6; from 9.5.0 before 9.5.3 — fixed in 8.19.21, 9.4.6, 9.5.3
How to fix
Upgrade to a fixed version: Kibana 8.19.21, 9.4.6, 9.5.3. Check the vendor advisory for mitigations.
References
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