{"cve":"CVE-2025-55740","nvd":{"published":"2025-08-19T20:15:35.467","modified":"2026-06-17T09:42:08.887","status":"Deferred","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\nconfig.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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","score":6.5},"cwes":["CWE-1392"],"references":["https://github.com/Anipaleja/nginx-defender/security/advisories/GHSA-pr72-8fxw-xx22"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:07:46.309729541+00:00"},"epss":{"cve":"CVE-2025-55740","score":0.0024,"percentile":0.15093,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-pr72-8fxw-xx22","url":"https://osv.dev/vulnerability/GHSA-pr72-8fxw-xx22","summary":"Default Credentials in nginx-defender Configuration Files","modified":"2025-08-29T20:37:35Z","packages":[{"ecosystem":"Go","name":"github.com/Anipaleja/nginx-defender","purl":"pkg:golang/github.com/Anipaleja/nginx-defender","ranges":["<1.5.0"],"fixed":["1.5.0"]}]},{"id":"GO-2025-3896","url":"https://osv.dev/vulnerability/GO-2025-3896","summary":"Default Credentials in nginx-defender Configuration Files in github.com/Anipaleja/nginx-defender","modified":"2026-03-03T04:56:50.658789Z","packages":[{"ecosystem":"Go","name":"github.com/Anipaleja/nginx-defender","purl":"pkg:golang/github.com/Anipaleja/nginx-defender","ranges":["<1.5.0"],"fixed":["1.5.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}