{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-44506","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-05-06T18:28:20.886Z","datePublished":"2026-09-03T19:04:47.285Z","dateUpdated":"2026-09-04T13:41:42.718Z"},"containers":{"cna":{"title":"Medplum - Exposure of OAuth client secret via dynamic registration endpoint in self-hosted configurations","problemTypes":[{"descriptions":[{"cweId":"CWE-200","lang":"en","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","type":"CWE"}]}],"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"}}],"references":[{"name":"https://github.com/medplum/medplum/security/advisories/GHSA-ch8p-j6cm-r7w5","tags":["x_refsource_CONFIRM"],"url":"https://github.com/medplum/medplum/security/advisories/GHSA-ch8p-j6cm-r7w5"},{"name":"https://github.com/medplum/medplum/releases/tag/v5.1.7","tags":["x_refsource_MISC"],"url":"https://github.com/medplum/medplum/releases/tag/v5.1.7"}],"affected":[{"vendor":"medplum","product":"medplum","versions":[{"version":">= 4.1.10, < 5.1.7","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-03T19:04:47.285Z"},"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."}],"source":{"advisory":"GHSA-ch8p-j6cm-r7w5","discovery":"UNKNOWN"}},"adp":[{"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"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-04T13:41:42.718Z"}}]}}