nginx-defender is a high-performance, enterprise-grade Web Application Firewall (WAF) and threat detection system engineered for modern web infrastructure. This is a configuration vulnerability affecting nginx-defender deployments. Example configuration files
config.yaml and docker-compose.yml contain default credentials (default_password: "change_me_please", GF_SECURITY_ADMIN_PASSWORD=admin123). If users deploy nginx-defender without changing these defaults, attackers with network access could gain administrative control, bypassing security protections. The issue is addressed in v1.5.0 and later.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 21 Aug 2025 13:00:00 +0000

Type Values Removed Values Added
First Time appeared Nginx-defender Project
Nginx-defender Project nginx-defender
Vendors & Products Nginx-defender Project
Nginx-defender Project nginx-defender

Tue, 19 Aug 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Tue, 19 Aug 2025 20:00:00 +0000

Type Values Removed Values Added
Description nginx-defender is a high-performance, enterprise-grade Web Application Firewall (WAF) and threat detection system engineered for modern web infrastructure. This is a configuration vulnerability affecting nginx-defender deployments. Example configuration files config.yaml and docker-compose.yml contain default credentials (default_password: "change_me_please", GF_SECURITY_ADMIN_PASSWORD=admin123). If users deploy nginx-defender without changing these defaults, attackers with network access could gain administrative control, bypassing security protections. The issue is addressed in v1.5.0 and later.
Title Default Credentials in nginx-defender Configuration Files
Weaknesses CWE-1392
References
Metrics cvssV3_1

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


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-08-19T20:05:46.786Z

Reserved: 2025-08-14T22:31:17.684Z

Link: CVE-2025-55740

cve-icon Vulnrichment

Updated: 2025-08-19T20:05:40.865Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-08-19T20:15:35.467

Modified: 2025-08-20T14:40:17.713

Link: CVE-2025-55740

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-08-21T12:59:10Z