What’s Vulnerable › Vulnerabilities
CVE-2026-78601: Missing Authorization in Kibana Leading to Unauthorized Elasticsearch Index Data Exposure
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% 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-862
Description
Missing Authorization (CWE-862) in Kibana can lead to information disclosure via Privilege Abuse (CAPEC-122). An authorization control was not applied to a Kibana Entity Store configuration operation, allowing an authenticated user with elevated Kibana privileges to indirectly cause a background task to read from Elasticsearch indices that user is not authorized to access. Derived entity data from those indices is then exposed through the entity store output.
Affected products
- Kibana: from 9.4.0 before 9.4.5 — fixed in 9.4.5
How to fix
Upgrade to a fixed version: Kibana 9.4.5. Check the vendor advisory for mitigations.
References
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