CVE-2026-0543

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-20CWE-770

Affected software

No affected versions have been published.

Timeline

Published
Jan 13, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2026-0543: Medium severity, CVSS 6.5 | Vulnix