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CVE-2026-102334: Improper Restriction of Excessive Authentication Attempts in NginxProxyManager nginx-proxy-manager

0
Critical
VulnerabilityCVE-2026-102334cvecve-2026-102334
Published: 09/28/2026 (09/28/2026, 22:21:41 UTC)
Source: CVE Database V5
Vendor/Project: NginxProxyManager
Product: nginx-proxy-manager

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.

CVSS v4.0

Score 9.1critical

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
High
Vuln. Integrity
High
Vuln. Availability
None
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Affected software

NginxProxyManager

nginx-proxy-manager

Affected versions
>=0 <=2.16.0
GitHub Actionsmore threats →cve
nginx-proxy-manager
pkg:github/nginx-proxy-manager
Affected versions
>=0 <=2.16.0

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Data Version
5.2
Assigner Short Name
VulnCheck
Date Reserved
2026-09-28T22:08:55.547Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6abaeb37f7a7c541064c3fcc

Added to database: 09/28/2026, 22:33:27 UTC

Last updated: 09/28/2026, 22:33:27 UTC

Views: 1

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