CVE-2021-3424

MediumCVSS 5.3/10Last modified Jun 17, 2026

Description

A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible. A malicious user can register himself with a name already registered and trick admin to grant him extra privileges.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-287

Affected software

No affected versions have been published.

Timeline

Published
Jun 1, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-3424: Medium severity, CVSS 5.3 | Vulnix