VULNERABILITY INTELLIGENCE

CVE-2026-4633

CVSS score3.7 LOW
EPSS probability0.42%
CISA KEVNot currently listed
Published2026-03-23
Last modified2026-10-22
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Description

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.

Weakness classification

  • secalert@redhat.com: CWE-209

Primary references