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 clientsecret of preconfigured OAuth clients defined via the defaultOAuthClients server configuration when a matching redirecturi was provided. This issue has been patched in version 5.1.7.
{
"cwe_ids": [
"CWE-200"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44506.json"
}