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.

INFO

Published Date :

2026-03-23T10:53:35.655Z

Last Modified :

2026-04-01T14:38:10.321Z

Source :

redhat
AFFECTED PRODUCTS

The following products are affected by CVE-2026-4633 vulnerability.

Vendors Products
Redhat
  • Build Keycloak
  • Build Of Keycloak
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-4633.

URL Resource
https://access.redhat.com/security/cve/CVE-2026-4633 cve-icon cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=2450247 cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact