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.
Published: 2026-10-09
Score: 8.8 High
EPSS: n/a
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-33rr-wq23-g6gg Nginx-UI AuthRequired token cookie fallback enables CSRF against management APIs
History

Fri, 09 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 09 Oct 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared 0xjacky
0xjacky nginx-ui
Vendors & Products 0xjacky
0xjacky nginx-ui

Fri, 09 Oct 2026 15:45:00 +0000

Type Values Removed Values Added
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.
Title Nginx-UI AuthRequired token cookie fallback enables CSRF against management APIs
Weaknesses CWE-352
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}


Subscriptions

0xjacky Nginx-ui
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-09T16:45:22.243Z

Reserved: 2026-10-08T21:23:59.821Z

Link: CVE-2026-107809

cve-icon Vulnrichment

Updated: 2026-10-09T16:16:14.592Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-09T16:17:25.387

Modified: 2026-10-09T17:16:45.730

Link: CVE-2026-107809

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-09T16:30:09Z

Weaknesses
  • CWE-352

    Cross-Site Request Forgery (CSRF)