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CVE-2026-4633

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CVE-2026-4633

Published: Mar 23, 2026

Modified: Apr 1, 2026

PUBLISHED

CVSS v3.1

3.7

LOW

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.

VendorProductVersions

Red Hat

Red Hat Build of Keycloak

All versions

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

References

RHBZ#2450247
issue-tracking
x_refsource_REDHAT

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