OpenEMR Flaws Expose Patient Data Across Healthcare Deployments
OpenEMR’s main failure mode is access control, not just isolated bugs. When authorization breaks across an EMR platform, a logged-in attacker can reach patient records, alter data, and in some cases turn database access into broader compromise; patching closes the code path, but it does not undo exposure if secrets or records were already taken.
Aisle found 39 flaws in OpenEMR, 38 of them assigned CVEs, through a partnership with OpenEMR developers. The most serious issues were two critical SQL injection bugs, CVE-2026-24908 and CVE-2026-23627, plus CVE-2026-24487, an authorization bypass that could expose patient data; the rest were mostly missing or incorrect authorization, with some XSS, path traversal, and session-expiration issues.
The pattern matters because OpenEMR is used by more than 100,000 healthcare providers and stores data on more than 200 million patients. Repeated authorization failures across modules suggest a systemic design weakness that can put PHI at risk even in deployments that are otherwise firewalled and maintained.