CVE-2026-32711: Pydicom

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

pydicom is a pure Python package for working with DICOM files. Versions 2.0.0-rc.1 through 3.0.1 are vulnerable to Path Traversal through a maliciously crafted DICOMDIR ReferencedFileID when it is set to a path outside the File-set root. pydicom resolves the path only to confirm that it exists, but does not verify that the resolved path remains under the File-set root. Subsequent public FileSet operations such as copy(), write(), and remove()+write(use_existing=True) use that unchecked path in file I/O operations. This allows arbitrary file read/copy and, in some flows, move/delete outside the File-set root. This issue has been fixed in version 3.0.2.

Affected products

• Pydicom Pydicom: from 2.0.0, before 3.0.2 (fixed in 3.0.2)

Published 2026-03-20. Last modified 2026-06-17.