GHSA-V856-2RF8-9F28 pydicom has a path traversal in FileSet/DICOMDIR ReferencedFileID allows file access outside the File-set root

Summary A crafted DICOMDIR can set ReferencedFileID 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...