4.2

CVE-2026-96446

Keycloak-services: keycloak-services: par single-use bypass via prompt=none silent authentication path

A flaw was found in the Pushed Authorization Request PAR implementation of Keycloak. The issue occurs when the silent authentication path prompt=none is used, which allows the authorization process to skip certain steps if a user is already logged in. Due to this bypass, the security rule that ensures a pushed request URI is used only once is not enforced. An attacker could potentially reuse a request URI to obtain multiple authorization codes for a user who is already signed in, violating security standards like FAPI-2.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerRed Hat
≫
Produkt Red Hat Build of Keycloak
Default Statusaffected
HerstellerRed Hat
≫
Produkt Red Hat Build of Keycloak
Default Statusaffected
HerstellerRed Hat
≫
Produkt Red Hat Single Sign-On 7
Default Statusunaffected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.18% 0.062
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
RedHat 4.2 1.6 2.5
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
CWE-862 Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

https://access.redhat.com/security/cve/CVE-2026-96446
https://bugzilla.redhat.com/show_bug.cgi?id=2539284