VULNERABILITY INTELLIGENCE

CVE-2026-0543

CVSS score6.5 MEDIUM
EPSS probability0.43%
CISA KEVNot currently listed
Published2026-01-13
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

  • security@elastic.co: CWE-20
  • nvd@nist.gov: CWE-770

Primary references