---
id: CVE-2026-102334
title: >-
  Nginx Proxy Manager through 2.16.0 lacks rate-limiting on authentication
  endpoints, allowing unauthenticated attackers to make unlimited password
  guesses against any account
summary: >-
  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/toke…
severity: high
cvss: 7.4
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-307
vendor: NginxProxyManager
product: nginx-proxy-manager
affected:
  - nginx-proxy-manager <= 2.16.0
published: '2026-09-28'
updated: '2026-09-28'
sourceUpdated: '2026-09-28T23:17:01.837'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-102334'
references:
  - url: 'https://github.com/NginxProxyManager/nginx-proxy-manager'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/app.js#L15-L58
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/internal/2fa.js#L196-L240
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/internal/token.js#L154-L182
    label: disclosure@vulncheck.com
  - url: 'https://github.com/NginxProxyManager/nginx-proxy-manager/pull/5908'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/nginx-proxy-manager-through-2.16.0-missing-brute-force-protection
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-28T23:23:00.571Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.