CVE-2026-107808
Nginx UI: Authentication bypass: password login does not enforce a passkey-only second factor (2FA bypass)
HIGH 8.1
At a glance
- Source
- NVD
- EPSS
- EPSS 0.41 % · percentile 35 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Analyzed
Description
Nginx UI is a web user interface for the Nginx web server. From 2.0.0 until 2.5.0, POST /api/login checks EnabledOTP but does not require a WebAuthn assertion when EnabledPasskey is true and no TOTP secret is configured. A passkey-only account is therefore issued a session after password verification, despite Enabled2FA reporting that the account has a second factor. An attacker who obtains the password can take over the account and reach administrative functionality without the registered passkey. This issue is fixed in version 2.5.0.
Weaknesses (CWE)
- CWE-287 — Improper Authentication
- CWE-305 — Authentication Bypass by Primary Weakness
- CWE-308 — Use of Single-factor Authentication
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | GitHub_M |
| CVSS 3.1 | HIGH 8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · security-advisories@github.com (Secondary) |
Advisories
- GHSA-45gv-9wjv-xh7p — Nginx UI: Authentication bypass: password login does not enforce a passkey-only second factor (2FA bypass)
- GO-2026-6704 — Nginx UI: Authentication bypass: password login does not enforce a passkey-only second factor (2FA bypass) in github.com/0xJacky/Nginx-UI
European references
- ENISA EUVD · EUVD-2026-95891
- GCVE · GCVE-0-2026-107808
Affected configurations (NVD CPE)
cpe:2.3:a:nginxui:nginx_ui:*:*:*:*:*:*:*:*≥ 2.0.0 < 2.5.0
Affected products
| Product | Versions |
|---|---|
| 0xJacky · nginx-ui | affected >= 2.0.0, < 2.5.0 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |