{"id":"CVE-2026-124458","kind":"vulnerability","aliases":["CVE-2026-124458"],"related":[],"title":"OpenEMR: patient portal users can read staff personal details via FHIR","description":"OpenEMR before 8.4.0 contains an authorization bypass vulnerability in the FHIR GET /fhir/Person/:uuid route that allows patient-portal users to read any staff member's demographics by bypassing compartment enforcement. Attackers holding a patient SMART token with patient/Person.read can harvest staff Person UUIDs from Appointment references to retrieve names, home addresses, phone numbers, and personal emails.","summary":"OpenEMR before 8.4.0 fails to enforce the patient compartment on the FHIR GET /fhir/Person/:uuid route. A patient-portal user with a SMART token holding patient/Person.read can read any staff member's name, home address, phone number and personal email.","severity":"high","cvss":7.1,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["fhir","healthcare","openemr","runtime","self-hosted"],"not_affected_if":["fhir-api-disabled","patient-portal-disabled"],"how_to_check":"- Check the installed OpenEMR version against the fixed release in the product data.\n- Confirm whether the FHIR API and patient portal are enabled on the deployment.","fix":"- OpenEMR: move to `8.4.0` or later.","status":"open","published_at":"2026-11-08T14:18:13+00:00","first_seen_at":"2026-11-08T14:48:40+00:00","triaged_at":"2026-11-08T14:49:44+00:00","updated_at":"2026-11-08T14:49:44+00:00","category":"runtime","confidence":0.8,"triage":{"at":"2026-11-08T14:49:44Z","model":"claude-haiku-5-5","output":{"fix":"- OpenEMR: move to `8.4.0` or later.","reach":"internet","title":"OpenEMR: patient portal users can read staff personal details via FHIR","impact":"medium","summary":"OpenEMR before 8.4.0 fails to enforce the patient compartment on the FHIR GET /fhir/Person/:uuid route. A patient-portal user with a SMART token holding patient/Person.read can read any staff member's name, home address, phone number and personal email.","audience":"businesses","category":"runtime","nicknames":[],"who_cares":["openemr","fhir","healthcare","self-hosted"],"confidence":0.8,"fix_status":"available","needs_auth":"yes","worst_case":"A patient account reads staff names, home addresses, phones and personal emails.","analyst_note":"","how_to_check":"- Check the installed OpenEMR version against the fixed release in the product data.\n- Confirm whether the FHIR API and patient portal are enabled on the deployment.\n- unknown for any other check, as the sources do not say.","plain_action":"","product_name":"","needs_analyst":false,"not_affected_if":["fhir-api-disabled","patient-portal-disabled"],"who_is_affected":"Clinics and hospitals that run OpenEMR with the FHIR API and the patient portal enabled are exposed, since the flaw needs a patient-portal account with a SMART token that has patient/Person.read. Deployments without the FHIR API or patient portal, or with the portal disabled, are not described as affected by the sources.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"yes","severity_if_unknown":"high"},"cost_usd":0.000744,"input_tokens":4650,"output_tokens":557,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-124458':14A,17A '-2026':13A,16A '/fhir/person':38B,78C '8.4.0':27B,68C 'address':60B,118C 'allow':82C 'appoint':112C 'attack':98C 'author':71C 'bypass':72C,95C 'compart':33B,96C 'contain':69C 'cve':12A,15A 'demograph':93C 'detail':9A 'email':65B,123C 'enforc':30B,97C 'fail':28B 'fhir':11A,18B,36B,76C 'get':37B,77C 'harvest':107C 'healthcar':19B 'hold':50B,99C 'home':59B,117C 'host':24B 'member':56B,91C 'name':58B,116C 'number':62B,120C 'openemr':1A,20B,25B,66C 'patient':2A,32B,43B,84C,101C 'patient-port':42B,83C 'patient/person.read':51B,105C 'person':8A,64B,109C,122C 'phone':61B,119C 'portal':3A,44B,85C 'read':6A,53B,88C 'refer':113C 'retriev':115C 'rout':40B,80C 'runtim':21B 'self':23B 'self-host':22B 'smart':48B,102C 'staff':7A,55B,90C,108C 'token':49B,103C 'user':4A,45B,86C 'uuid':39B,79C,110C 'via':10A 'vulner':73C","nicknames":[],"mitigations":[],"who_affected":"Clinics and hospitals that run OpenEMR with the FHIR API and the patient portal enabled are exposed, since the flaw needs a patient-portal account with a SMART token that has patient/Person.read. Deployments without the FHIR API or patient portal, or with the portal disabled, are not described as affected by the sources.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["fhir","healthcare","high","openemr","runtime","selfhosted"],"campaign_type":null,"search_a":"'-124458':14A,17A '-2026':13A,16A 'cve':12A,15A 'detail':9A 'fhir':11A 'openemr':1A 'patient':2A 'person':8A 'portal':3A 'read':6A 'staff':7A 'user':4A 'via':10A","search_b":"'/fhir/person':38B '8.4.0':27B 'address':60B 'compart':33B 'email':65B 'enforc':30B 'fail':28B 'fhir':18B,36B 'get':37B 'healthcar':19B 'hold':50B 'home':59B 'host':24B 'member':56B 'name':58B 'number':62B 'openemr':20B,25B 'patient':32B,43B 'patient-port':42B 'patient/person.read':51B 'person':64B 'phone':61B 'portal':44B 'read':53B 'rout':40B 'runtim':21B 'self':23B 'self-host':22B 'smart':48B 'staff':55B 'token':49B 'user':45B 'uuid':39B","search_c":"'/fhir/person':78C '8.4.0':68C 'address':118C 'allow':82C 'appoint':112C 'attack':98C 'author':71C 'bypass':72C,95C 'compart':96C 'contain':69C 'demograph':93C 'email':123C 'enforc':97C 'fhir':76C 'get':77C 'harvest':107C 'hold':99C 'home':117C 'member':91C 'name':116C 'number':120C 'openemr':66C 'patient':84C,101C 'patient-port':83C 'patient/person.read':105C 'person':109C,122C 'phone':119C 'portal':85C 'read':88C 'refer':113C 'retriev':115C 'rout':80C 'smart':102C 'staff':90C,108C 'token':103C 'user':86C 'uuid':79C,110C 'vulner':73C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-09-13T09:35:42+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvss_by":"disclosure@vulncheck.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-124458","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-124458","severity":null,"published_at":"2026-11-08T14:18:13+00:00","modified_at":"2026-11-08T14:18:13+00:00","first_seen_at":"2026-11-08T14:48:40+00:00","fetched_at":"2026-11-08T14:48:40+00:00","note":null}],"documents":[{"id":102099,"url":"https://github.com/openemr/openemr/security/advisories/GHSA-ggpx-qgcr-w2gh","title":"Vendor advisory: github.com","kind":"vendor","source":"nvd","publisher":"vendor","text":null,"published_at":"2026-09-13T09:35:42+00:00","relation":"advisory","confidence":null,"note":"Vendor advisory: github.com"},{"id":102100,"url":"https://www.vulncheck.com/advisories/openemr-before-8.4.0-fhir-patient-compartment-bypass-via-person-endpoint","title":"Third-party advisory: www.vulncheck.com","kind":"advisory","source":"nvd","publisher":"research","text":null,"published_at":null,"relation":"advisory","confidence":null,"note":"Third-party advisory: www.vulncheck.com"}],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}