What’s Vulnerable › Vulnerabilities
CVE-2026-26939: Missing Authorization in Kibana Leading to Unauthorized Endpoint Response Action Configuration
- Severity: medium (CVSS 6.5 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: 2026-03-19 · updated 2026-06-17
- Weakness: CWE-862
Description
Missing Authorization (CWE-862) in Kibana’s server-side Detection Rule Management can lead to Unauthorized Endpoint Response Action Configuration (host isolation, process termination, and process suspension) via CAPEC-1 (Accessing Functionality Not Properly Constrained by ACLs). This requires an authenticated attacker with rule management privileges.
Affected products
- Kibana: from 8.0.0 before 8.19.12; from 9.0.0 before 9.2.6; 9.3.0 — fixed in 8.19.12, 9.2.6
How to fix
Upgrade to a fixed version: Kibana 8.19.12, 9.2.6. Check the vendor advisory for mitigations.
References
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