Vulnerability in Nginx UI Web Interface by Nginx
CVE-2026-107808

8.1HIGH

Key Information:

Vendor

0xjacky

Status
Nginx-ui
Vendor
CVE Published:
9 October 2026

What is CVE-2026-107808?

The Nginx UI web interface has a vulnerability affecting versions 2.0.0 to 2.5.0, where the POST /api/login endpoint fails to enforce the required WebAuthn assertion when the passkey is enabled and no TOTP secret is set up. This flaw allows an attacker who manages to obtain the account password to bypass the intended two-factor authentication protections, subsequently gaining unauthorized access to administrative features without needing the registered passkey. The vulnerability has been addressed in version 2.5.0.

Affected Version(s)

nginx-ui >= 2.0.0, < 2.5.0

References

https://github.com/0xJacky/nginx-ui/security/advisories/G...
x_refsource_CONFIRM
https://github.com/0xJacky/nginx-ui/commit/95cd21b70814e5...
x_refsource_MISC
https://github.com/0xJacky/nginx-ui/releases/tag/v2.5.0
x_refsource_MISC

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.