{"id":"CVE-2026-44506","state":"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.","publishedAt":"2026-09-03T19:04:47.285Z","updatedAt":"2026-09-04T13:41:42.718Z","severity":{"score":8.2,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["medplum medplum"],"affected":[{"vendor":"medplum","product":"medplum","versions":[{"version":">= 4.1.10, < 5.1.7","status":"affected"}]}],"references":["https://github.com/medplum/medplum/security/advisories/GHSA-ch8p-j6cm-r7w5","https://github.com/medplum/medplum/releases/tag/v5.1.7"],"weaknesses":["CWE-200"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/44xxx/CVE-2026-44506.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-44506","state":"PUBLISHED","datePublished":"2026-09-03T19:04:47.285Z","dateUpdated":"2026-09-04T13:41:42.718Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-06T18:28:20.886Z"},"containers":{"cna":{"title":"Medplum - Exposure of OAuth client secret via dynamic registration endpoint in self-hosted configurations","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"medplum","product":"medplum","versions":[{"version":">= 4.1.10, < 5.1.7","status":"affected"}]}],"references":[{"url":"https://github.com/medplum/medplum/security/advisories/GHSA-ch8p-j6cm-r7w5","name":"https://github.com/medplum/medplum/security/advisories/GHSA-ch8p-j6cm-r7w5","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/medplum/medplum/releases/tag/v5.1.7","name":"https://github.com/medplum/medplum/releases/tag/v5.1.7","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-200","lang":"en","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-09-03T19:04:47.285Z"},"source":{"advisory":"GHSA-ch8p-j6cm-r7w5","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-04T13:28:17.536896Z","id":"CVE-2026-44506","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-04T13:41:42.718Z"}}]}}}