Nginx UI: Authentication bypass: password login does not enforce a passkey-only second factor (2FA bypass)

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-107808
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-09 16:17:25 UTC
Updated2026-10-09 16:38:57 UTC
DescriptionNginx 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.

Risk And Classification

Primary CVSS: v3.1 8.1 HIGH from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-287 | CWE-305 | CWE-308 | CWE-287 CWE-287: Improper Authentication | CWE-305 CWE-305: Authentication Bypass by Primary Weakness | CWE-308 CWE-308: Use of Single-factor Authentication

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED8.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA 0xJacky Nginx-ui affected >= 2.0.0, < 2.5.0 Not specified

References

ReferenceSourceLinkTags
github.com/0xJacky/nginx-ui/releases/tag/v2.5.0 [email protected] github.com
github.com/0xJacky/nginx-ui/security/advisories/GHSA-45gv-9wjv-xh7p [email protected] github.com
github.com/0xJacky/nginx-ui/commit/95cd21b70814e5d9a48a359aa238aeea1ac97429 [email protected] github.com
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