CVE-2026-95503: fallo de gravedad media en Red Hat build of Keycloak 26.6.8
Keycloak-services: keycloak-services: potential kdc spoofing bypass when kerberos password authentication is enabled
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 6.8epss 0.2%
A flaw was found in the Kerberos federation provider of Keycloak, an open-source identity and access management solution. When Kerberos password authentication is used without SPNEGO, the system fails to verify the identity of the Key Distribution Center (KDC) by requesting a server ticket. This allows an attacker on the same network to spoof the KDC and bypass the authentication process, potentially gaining unauthorized access to user accounts.
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CVEs relacionadas — Red Hat build of Keycloak 26.6.8
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-18963CRITICALKeycloak-services: keycloak-services: unauthenticated account takeover via reset-credentials flow bypassEPSS 4.7%CVE-2023-5685HIGHXnio: stackoverflowexception when the chain of notifier states becomes problematically bigEPSS 3.5%CVE-2024-3656HIGHKeycloak: unguarded admin rest api endpoints allows low privilege users to use administrative functionalitiesEPSS 3.3%CVE-2024-5971HIGHUndertow: response write hangs in case of java 17 tlsv1.3 newsessionticketEPSS 2.9%CVE-2026-76166MEDIUMModcluster-core: mod_cluster advertise listener: unauthenticated dos via crafted multicast datagramEPSS 2.7%CVE-2024-7885HIGHUndertow: improper state management in proxy protocol parsing causes information leakageEPSS 2.6%