CVE-2026-44506

8.2 highEPSS 0.4%

High (8.2). EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

8.2 high

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

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 28% of CVEs (scores of 2026-10-31)
CWE: CWE-200
Published: 2026-09-03
Modified: 2026-09-09
Record from: the NVD, synced 2026-10-19

References

https://github.com/medplum/medplum/releases/tag/v5.1.7
https://github.com/medplum/medplum/security/advisories/GHSA-ch8p-j6cm-r7w5

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