CVE-2026-44506 — Medplum - Exposure of OAuth client secret via dynamic registration endpoint in self-hosted configurations
Medplum is a developer platform that enables development of healthcare apps. In Medplum versions 4.1.10 through 5.1.6, the /oauth2/register endpoint could return the client_secr…
Published: 2026-09-03 · CVSS: 8.2 · CVSS 3.1
Medplum is a developer platform that enables development of healthcare apps. In Medplum versions 4.1.10 through 5.1.6, the /oauth2/register endpoint could return the client_secret of preconfigured OAuth clients defined via the defaultOAuthClients server configuration when a matching redirect_uri was provided. This issue has been patched in version 5.1.7.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7