CVE-2026-0543

Fixed in a distro release EPSS <1%CVSS 6.5

Improper Input Validation (CWE-20) in Kibana's Email Connector can allow an attacker to cause an Excessive Allocation (CAPEC-130) through a specially crafted email address parameter. This requires an attacker to have authenticated access with view-level privileges sufficient to execute connector actions. The application attempts to process specially crafted email format, resulting in complete service unavailability for all users until manual restart is performed.

Published 2026-01-13 · CVE record · OSV

Products: Elastic Kibana

Distro releases