CVE-2023-6544

MediumCVSS 5.4/10Last modified Jun 17, 2026

Description

A flaw was found in the Keycloak package. This issue occurs due to a permissive regular expression hardcoded for filtering which allows hosts to register a dynamic client. A malicious user with enough information about the environment could jeopardize an environment with this specific Dynamic Client Registration and TrustedDomain configuration previously unauthorized.

Metrics

CVSS 3.1 5.4/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Weakness enumeration

CWE-625

Affected software

Vendor	Product	Versions
—	—	>= 22.0.0, < 22.0.10; >= 23.0.0, < 24.0.3
Red Hat	Red Hat build of Keycloak 22	—
Red Hat	Red Hat build of Keycloak 22	—
Red Hat	Red Hat build of Keycloak 22	—
Red Hat	Red Hat build of Keycloak 22.0.10	—
Red Hat	Red Hat Single Sign-On 7.6 for RHEL 7	—
Red Hat	Red Hat Single Sign-On 7.6 for RHEL 8	—
Red Hat	Red Hat Single Sign-On 7.6 for RHEL 9	—
Red Hat	RHEL-8 based Middleware Containers	—
Red Hat	RHSSO 7.6.8	—

References

Timeline

Published: Apr 25, 2024
Last modified: Jun 17, 2026
NVD status: Deferred

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