CVEvulnerability

CVE-2026-0543

6.5 MEDIUM Published 2026-01-13 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-01-13
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-20, CWE-770

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.

Affected configurations

• elastic kibana (>= 7.0.0 <= 7.17.29) • elastic kibana (>= 8.0.0 < 8.19.0) • elastic kibana (>= 9.0.0 < 9.1.10) • elastic kibana (>= 9.2.0 < 9.2.4)

Related

Weakness · CWE (2)

  • CWE-20 Improper Input Validation weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling weakness

References