VULNERABILITY INTELLIGENCE

CVE-2021-3424

CVSS score5.3 MEDIUM
EPSS probability0.77%
CISA KEVNot currently listed
Published2021-06-01
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

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.

Weakness classification

  • secalert@redhat.com: CWE-287
  • nvd@nist.gov: NVD-CWE-Other

Primary references