CVE-2026-0543 — Improper Input Validation in Kibana Email Connector Leading to Excessive Allocation
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 param…
Published: 2026-01-13 · CVSS: 6.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7