CVE-2026-126129
Published:November 10, 2026
Updated:November 12, 2026
The Auth0 ASP.NET Core Authentication SDK incorrectly determines a session's OIDC Back-Channel Logout status, which may result in a logged-out session being accepted for access to protected endpoints.
Affected Packages
Auth0.AspNetCore.Authentication (DOT_NET):
Affected version(s) >=1.7.0 <1.12.0Fix Suggestion:
Update to version 1.12.0https://github.com/auth0/auth0-aspnetcore-authentication.git (GITHUB):
Affected version(s) >=1.7.0 <1.12.0Fix Suggestion:
Update to version 1.12.0auth0.aspnetcore.authentication (NUGET):
Affected version(s) >=1.7.0 <1.12.0Fix Suggestion:
Update to version 1.12.0Related Resources (1)
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Contact UsCVSS v4
Base Score:
6
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.9
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
EPSS
Base Score:
0.23