CVE-2026-4633
Keycloak: keycloak: user enumeration via differential error messages
A flaw was found in Keycloak. A remote attacker can exploit differential error messages during the identity-first login flow when Organizations are enabled. This vulnerability allows an attacker to determine the existence of users, leading to information disclosure through user enumeration.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected products
Red Hat · Red Hat Build of KeycloakWant to know if your infrastructure is exposed to this?
Talk to TrueHacking →