5.4

CVE-2026-105305

Keycloak-services: keycloak-services: device authorization grant bypasses per-client minimum.acr.value enforcement

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerRed Hat
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Produkt Red Hat Build of Keycloak
Default Statusaffected
HerstellerRed Hat
≫
Produkt Red Hat Build of Keycloak
Default Statusaffected
HerstellerRed Hat
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Produkt Red Hat Single Sign-On 7
Default Statusunaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.19% 0.077
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
RedHat 5.4 2.8 2.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CWE-287 Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

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