Description
Nginx Proxy Manager through 2.16.0 lacks rate-limiting on authentication endpoints, allowing unauthenticated attackers to make unlimited password guesses against any account. Attackers can brute-force login credentials via POST /api/tokens and subsequently guess TOTP codes via POST /api/tokens/2fa to gain full session access and administrative control.
References
- www.cve.org/CVERecord ↗
- nvd.nist.gov/vuln/detail/CVE-2026-102334 ↗
- github.com/NginxProxyManager/nginx-proxy-manager ↗
- github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/app.js ↗
- github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/internal/2fa.js ↗
- github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/internal/token.js ↗
- github.com/NginxProxyManager/nginx-proxy-manager/pull/5908 ↗
- www.vulncheck.com/advisories/nginx-proxy-manager-through-2.16.0-missing-brute-force-protection ↗
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This product uses the NVD API but is not endorsed or certified by the NVD. CVSS scores do not establish exploitation.