CVE-2021-20323: Red Hat Keycloak

Medium severity, CVSS 6.1. EPSS: 37.2% chance of exploitation in the next 30 days.

A POST based reflected Cross Site Scripting vulnerability on has been identified in Keycloak.

Affected products

• Red Hat Keycloak: before 17.0.0 (fixed in 17.0.0)

Published 2022-03-25. Last modified 2026-06-17.