CVE-2025-37730

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

Improper certificate validation in Logstash's TCP output could lead to a man-in-the-middle (MitM) attack in “client” mode, as hostname verification in TCP output was not being performed when the ssl_verification_mode => full was set.

Metrics

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

Weakness enumeration

CWE-295

Affected software

No affected versions have been published.

Timeline

Published: May 6, 2025
Last modified: Jun 17, 2026
NVD status: Deferred

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