CVE-2026-84312 Details
Description
Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, GetCasdoorUri uses the configured Casdoor application name as a constant OAuth state value and CasdoorCallback does not compare the submitted state with a value bound to the initiating browser session. An unauthenticated attacker can cause a victim's browser to complete an attacker-controlled Casdoor authorization flow, and the callback can mint a Nginx UI session for the identity returned by that authorization code. This issue is fixed in version 2.4.1.
A vulnerability in Nginx UI's Casdoor Single Sign-On (SSO) integration prior to version 2.4.1 allows for a login Cross-Site Request Forgery (CSRF) attack. The issue arises because the 'state' parameter in the OAuth authorization flow is hard-coded to a constant value, and the callback handler does not validate this parameter against a session-specific value. As a result, an unauthenticated attacker can manipulate a victim's browser to complete an authorization flow that mints a session for the attacker on Nginx UI.
Users can update to Nginx UI version 2.4.1 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 12, 2026CISA-ADP
Assessed Oct 14, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/0xJacky/nginx-ui/commit/23d1934099b05b2a01589b48129dc3d3159d91c2 | [email protected] | Source CodeVendor |
| https://github.com/0xJacky/nginx-ui/releases/tag/v2.4.1 | [email protected] | Release NotesVendor |
| https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-44xr-mrhh-qm78 | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-287 | Improper Authentication | [email protected] |
| CWE-352 | Cross-Site Request Forgery (CSRF) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| 0xJacky Nginx UI | <= v2.3.9 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 14, 2026 | CVE Modified | CISA-ADP |
| Oct 12, 2026 | New CVE Received | [email protected] |