{"id":"CVE-2026-44506","aliases":["EUVD-2026-70699","GHSA-ch8p-j6cm-r7w5"],"status":"published","title":"Medplum - Exposure of OAuth client secret via dynamic registration endpoint in self-hosted configurations","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.","severity":{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00352,"percentile":0.29291,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200"],"published":"2026-09-03T19:04:47Z","modified":"2026-10-28T02:31:08Z","products":[{"vendor":"medplum","product":"medplum"}],"references":[{"url":"https://github.com/medplum/medplum/security/advisories/GHSA-ch8p-j6cm-r7w5","tags":["x_refsource_CONFIRM","advisory"]},{"url":"https://github.com/medplum/medplum/releases/tag/v5.1.7","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44506.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44506","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-44506","title":"Medplum - Exposure of OAuth client secret via dynamic registration endpoint in self-hosted configurations","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.","status":"published","published":"2026-09-03T19:04:47.285Z","modified":"2026-09-04T13:41:42.718Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T13:42:49.132798Z"}],"euvd":[{"id":"EUVD-2026-70699","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.","status":"published","published":"2026-09-03T19:04:47Z","modified":"2026-09-04T13:41:42Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T18:01:12.73639Z"}],"nvd":[{"id":"CVE-2026-44506","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.","status":"published","published":"2026-09-03T20:17:21.177Z","modified":"2026-09-09T21:09:13.08Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:12:43.737972Z"}],"osv":[{"id":"CVE-2026-44506","title":"Medplum - Exposure of OAuth client secret via dynamic registration endpoint in self-hosted configurations","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.","status":"published","published":"2026-09-03T19:04:47.285Z","modified":"2026-10-28T02:31:08.91180438Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N","level":"high"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T15:45:04.820169Z"}]}}