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.
Published: 2025-05-06
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
EUVD EUVD EUVD-2025-13629 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.
History

Sun, 13 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00021}

epss

{'score': 0.00022}


Tue, 06 May 2025 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 06 May 2025 17:45:00 +0000

Type Values Removed Values Added
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.
Title Logstash Improper Certificate Validation in TCP output
Weaknesses CWE-295
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N'}


Subscriptions

Elastic Logstash
cve-icon MITRE

Status: PUBLISHED

Assigner: elastic

Published:

Updated: 2025-05-06T17:51:59.631Z

Reserved: 2025-04-16T03:24:04.510Z

Link: CVE-2025-37730

cve-icon Vulnrichment

Updated: 2025-05-06T17:51:42.678Z

cve-icon NVD

Status : Deferred

Published: 2025-05-06T18:15:38.410

Modified: 2026-04-15T00:35:42.020

Link: CVE-2025-37730

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-07-12T16:01:42Z

Weaknesses