CVE-2026-4633

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.

• CWE-209

• https://access.redhat.com/security/cve/CVE-2026-4633Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2450247Exploit, Issue Tracking, Vendor Advisory

Published

Mar 23, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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