---
cve: "CVE-2021-3424"
severity: "LOW"
cvss: 3.1
epss: "0.8%"
vendor: "n/a"
kev: false
exploited: false
published: "2021-06-01 18:43:33"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T06:06:53+02:00"
---

# CVE-2021-3424

> 3.1 LOW

## Beschreibung

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.

## Referenzen

- <https://bugzilla.redhat.com/show_bug.cgi?id=1933320>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2021-3424) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_