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.

INFO

Published Date :

2026-01-13T21:10:38.663Z

Last Modified :

2026-01-13T21:25:59.853Z

Source :

elastic
AFFECTED PRODUCTS

The following products are affected by CVE-2026-0543 vulnerability.

Vendors Products
Elastic
  • Kibana
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-0543.

URL Resource
https://discuss.elastic.co/t/kibana-8-19-10-9-1-10-9-2-4-security-update-esa-2026-08/384523 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-0543 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-0543 cve-icon
Login to claim this CVE

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact