CVE-2026-124480

CVSS 8.8 (high) · published 2026-11-08

OpenEMR before 8.4.0 contains an authorization bypass vulnerability that allows low-privileged authenticated users to read cross-patient FHIR QuestionnaireResponse data by sending the APICSRFTOKEN header. Attackers can reuse the session-exposed api_csrf_token_js value to skip FHIR scope checks and call GET /fhir/QuestionnaireResponse, exfiltrating site-wide questionnaire answer PHI.

Weakness: CWE-862

Source: NVD CVE-2026-124480

References

• https://github.com/openemr/openemr/security/advisories/GHSA-5xf2-3h9x-f4m6
• https://www.vulncheck.com/advisories/openemr-before-8.4.0-authorization-bypass-via-fhir-questionnaireresponse-apicsrftoken
• https://github.com/openemr/openemr/security/advisories/GHSA-5xf2-3h9x-f4m6

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