CVE-2026-105305

A flaw was found in the OIDC implementation of Keycloak, specifically within the Device Authorization Grant flow. This component allows devices with limited input capabilities to obtain security tokens. The issue occurs because the flow fails to check the minimum authentication level required by a client configuration. This allows an attacker who has stolen a user's password to bypass mandatory multi-factor authentication and gain unauthorized access to the Keycloak Admin REST API.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-105305
https://bugzilla.redhat.com/show_bug.cgi?id=2545801

Configurations

No configuration.

History

06 Oct 2026, 08:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-06 08:16

Updated : 2026-10-06 15:09

NVD link : CVE-2026-105305

Mitre link : CVE-2026-105305

CVE.ORG link : CVE-2026-105305

JSON object : View

Products Affected

No product.

CWE

CWE-287

Improper Authentication

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