CVE-2026-84313 Details
Description
Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, POST /api/otp_enroll and POST /api/finish_passkey_register are registered outside RequireSecureSession and accept a normal authenticated session without verifying the current password. An attacker with a stolen JWT can bind an attacker-controlled TOTP secret when the victim has not already enabled TOTP, or can register an attacker-controlled passkey because that path has no equivalent existing-enrollment guard. These changes create persistent account access that can survive a password change and interfere with the legitimate user's authentication. This issue is fixed in version 2.4.1.
A vulnerability in Nginx UI prior to version 2.4.1 allows for unauthorized TOTP and WebAuthn passkey enrollment, leading to persistent account takeover. The issue arises because the relevant API endpoints do not require re-authentication and are registered outside of the secure session management. As a result, an attacker with a stolen JWT can manipulate TOTP settings or passkey registrations on behalf of a victim, bypassing normal authentication safeguards.
Users should update to Nginx UI version 2.4.1 or later, where this vulnerability has been fixed. After updating, verify that TOTP and passkey settings are correctly configured.
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 15, 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/security/advisories/GHSA-gfrc-g87h-7h5w | CISA-ADP | AdvisoryExploitRemedyVendor |
| 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-gfrc-g87h-7h5w | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-287 | Improper Authentication | [email protected] |
| CWE-306 | Missing Authentication for Critical Function | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| 0xJacky Nginx UI | <= 2.3.9 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 15, 2026 | CVE Modified | CISA-ADP |
| Oct 12, 2026 | New CVE Received | [email protected] |