CVE-2026-44506
Medplum - Exposure of OAuth client secret via dynamic registration endpoint in self-hosted configurations
- State
- Published
- Severity
- 8.2 High
- Published
- Sep 3, 2026
- Updated
- Sep 4, 2026
- Reserved
- May 6, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.2 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N | GitHub_M |
Weaknesses
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
Affected Products
| Product | Versions |
|---|---|
medplummedplum |
|
References
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