CVE-2025-37730— Logstash Improper Certificate Validation in TCP output
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I. Basic Information for CVE-2025-37730
Vulnerability Information
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Vulnerability Title
Logstash Improper Certificate Validation in TCP output
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
证书验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Elastic Logstash 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Elastic Logstash是荷兰Elastic公司的一套日志分析和监控工具。 Elastic Logstash 9.0.1之前版本存在安全漏洞，该漏洞源于证书验证不当，可能导致中间人攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-37730
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IV. Related Vulnerabilities
Same product: Logstash
Same vendor: Elastic
- CVE-2026-33467
Improper Verification of Cryptographic Signature in Elastic - CVE-2026-33466
Improper Limitation of a Pathname to a Restricted Directory - CVE-2026-33458
Server-Side Request Forgery (SSRF) in Kibana One Workflow Le - CVE-2026-33459
Uncontrolled Resource Consumption in Kibana Leading to Denia - CVE-2026-33460
Incorrect Authorization in Kibana Fleet Leading to Informati
Same weakness: CWE-295
V. Comments for CVE-2025-37730
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