CVE-2026-107809

High

Description

Nginx UI is a web user interface for the Nginx web server. From 2.0.0 until 2.5.0, AuthRequired accepts a browser-managed token cookie as an API credential after the front end stores the JWT in that cookie. Because management endpoints do not universally require a CSRF token or perform Origin or Referer validation, a remote attacker can induce a logged-in administrator's browser to submit authenticated cross-site state-changing requests, including POST /api/configs. The attack requires an administrator account without OTP/Passkey or a target endpoint that does not require secure-session proof. The attacker cannot read the cross-origin response but can modify Nginx configuration, trigger reloads, or invoke other management operations reachable with the victim's session. This issue is fixed in version 2.5.0.

SeverityHigh
CVSS8.8
Exploit probability—
ProductNginxui Nginx Ui
PublishedOct 9, 2026
First seenOct 9, 2026

How to fix

Update
  • nginxui nginx_ui2.5.0 or later
  • github.com/0xJacky/Nginx-UI1.9.10-0.20260728074433-a3999bd78a3b or later

Affected products

ProductAffected versionsFixed in
nginxui nginx_ui2.0.0 ≤ v < 2.5.02.5.0
github.com/0xJacky/Nginx-UIGo1.9.10-0.20250517140552-daee3ac7ade1 ≤ v < 1.9.10-0.20260728074433-a3999bd78a3b1.9.10-0.20260728074433-a3999bd78a3b

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