3.7
Low
CVE-2026-4633 A flaw was found in Keycloak
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Build of Keycloak | Versions not published | |
| Red Hat build of Keycloak 26.4.12 | Versions not published |
References
- RHSA-2026:19596 access.redhat.com
- access.redhat.com access.redhat.com
- RHBZ#2450247 bugzilla.redhat.com
Timeline
- Published
- Last modified
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