CVE-2026-107808CWE-287CWE-305CWE-308

CVE-2026-107808

High · published October 9, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
34.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00413 · 34.4th percentile
Weaknesses
CWE-287 · Improper Authentication; CWE-305 · Authentication Bypass by Primary Weakness; CWE-308 · Use of Single-factor Authentication
Published
2026-10-09T20:17Z
Affected products (1)
ProductVersionsFixed in
nginxui/nginx_ui≥ 2.0.0, < 2.5.02.5.0
References (4)
https://github.com/0xJacky/nginx-ui/commit/95cd21b70814e5d9a48a359aa238aeea1ac97429 · [email protected]https://github.com/0xJacky/nginx-ui/releases/tag/v2.5.0 · [email protected]https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-45gv-9wjv-xh7p · [email protected]https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-45gv-9wjv-xh7p · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 11 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 09 OCT 15:11Z
    Nginx UI: Authentication bypass: password login does not enforce a passkey-only second factor (2FA bypass)
    cvelistv5
  • 09 OCT 15:11Z
    Nginx UI: Authentication bypass: password login does not enforce a passkey-only second factor (2FA bypass)
    cvelistv5