CVE-2023-6544
Keycloak Authorization Bypass vulnerability
5.4
MEDIUM
CVSS 3.1
EPSS 1.3%
Description
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. #### Acknowledgements: Special thanks to Bastian Kanbach for reporting this issue and helping us improve our security.
How to fix CVE-2023-6544
To remediate CVE-2023-6544, upgrade the affected package to a fixed version below.
- —upgrade to 22.0.10 or later
Is CVE-2023-6544 being exploited?
Low — EPSS is 1.3%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 22.0.10
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |