CVE-2023-6544: Keycloak Authorization Bypass vulnerability

April 17, 2024

Due to a permissive regular expression hardcoded for filtering allowed hosts to register a dynamic client, a malicious user with enough information about the environment could benefit and jeopardize an environment with this specific Dynamic Client Registration with TrustedDomain configuration previously unauthorized.

References

github.com/advisories/GHSA-46c8-635v-68r2
github.com/keycloak/keycloak
github.com/keycloak/keycloak/security/advisories/GHSA-46c8-635v-68r2
nvd.nist.gov/vuln/detail/CVE-2023-6544

Code Behaviors & Features

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