CVE-2026-126423
MEDIUM
NVD
CVSS Score
4.3
Severity
MEDIUM
Published
Nov 13, 2026
Vendor
unknown
Description
OpenEMR before 8.5.0 contains a denial of service vulnerability in four ZIP upload paths that read uncompressed entries into memory without size or ratio checks. Authenticated billing or Carecoordination users can upload highly compressed ZIP archives to exhaust PHP memory and worker pools, making OpenEMR unavailable.