# CVE-2026-102334: Nginx Proxy Manager missing rate-limiting on authentication

Source: https://junglewise.ai/threats/cve-2026-102334-nginx-proxy-manager-through-2-16-0-lacks-rate-limiting-on  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-28. Updated: 2026-09-28  
License: CC BY 4.0 with a link back

CVE-2026-102334 · Severity: high · CVSS 7.4 · Published 2026-09-28

Nginx Proxy Manager, a Docker container for managing reverse proxy configurations with SSL termination, lacks rate-limiting protections on its login endpoints. An attacker can make unlimited password guesses and brute-force TOTP codes to gain full administrative access to the system, compromising all proxied services and SSL certificates managed through it.

Technologies: [Nginx Proxy Manager](https://junglewise.ai/threats/technologies/proxy-manager). Vendors: [Nginx Proxy Manager](https://junglewise.ai/threats/vendors/nginx-proxy-manager).

## Quick answers

**Is CVE-2026-102334 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-102334 being exploited in the wild.

**How severe is CVE-2026-102334?** High severity, with a CVSS score of 7.4, published 28 September 2026.

**Which products and versions are affected?** Nginx Proxy Manager through 2.16.0.

**Is there a fix for CVE-2026-102334?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-102334 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-102334?** Check whether you run Nginx Proxy Manager at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The application lacks rate-limiting on POST /api/tokens (password authentication) and POST /api/tokens/2fa (TOTP verification) endpoints, allowing unauthenticated attackers to perform unlimited brute-force attacks. An attacker can sequentially guess credentials and 2FA codes to obtain a valid session token and full admin privileges. No authentication or network boundary is required; attacks succeed remotely over the network against any user account.

## Affected products

- Nginx Proxy Manager Nginx Proxy Manager through 2.16.0

## Timeline

- 2026-09-28: disclosed

## References

- [https://github.com/NginxProxyManager/nginx-proxy-manager](https://github.com/NginxProxyManager/nginx-proxy-manager)
- [https://github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/app.js](https://github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/app.js)

## Related threats

- [Nginx Proxy Manager authorization bypass in advanced config](https://junglewise.ai/threats/cve-2026-102335-nginx-proxy-manager-through-2-16-0-fails-to-restrict-the)