by Kastro
Paper/Archive/CVE-2026-102334

CVE-2026-102334

NginxProxyManager nginx-proxy-manager — Nginx Proxy Manager through 2.16.0 Missing Brute-Force Protection

EPSS 0.5%CVSS 9.1
critical.is priorityof 100
35
CVSS 9.1 (CNA)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 39.4.394 × 207.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
nginx-proxy-manager≤ 2.16.0–CNA

Scores by source

VulnCheck (CNA)9.1CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
VulnCheck (CNA)7.4CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

patchgithub.com/NginxProxyManager/nginx-proxy-manager/pull/5908writeupgithub.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/app.js#L15-L58writeupgithub.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/internal/token.js#L154-L182writeupgithub.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/internal/2fa.js#L196-L240refgithub.com/NginxProxyManager/nginx-proxy-managerwriteupvulncheck.com/advisories/nginx-proxy-manager-through-2.16.0-missing-brute-force-protection