CVE-2025-25015: Elastic Kibana

Critical severity, CVSS 9.9. EPSS: 1.3% chance of exploitation in the next 30 days.

Prototype pollution in Kibana leads to arbitrary code execution via a crafted file upload and specifically crafted HTTP requests. In Kibana versions >= 8.15.0 and < 8.17.1, this is exploitable by users with the Viewer role. In Kibana versions 8.17.1 and 8.17.2 , this is only exploitable by users that have roles that contain all the following privileges: fleet-all, integrations-all, actions:execute-advanced-connectors

Affected products

• Elastic Kibana: from 8.15.0, before 8.16.6 (fixed in 8.16.6); from 8.17.0, before 8.17.3 (fixed in 8.17.3)

Published 2025-03-05. Last modified 2026-06-17.