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.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-22"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32711.json"
}{
"extracted_events": [
{
"cpe": "cpe:2.3:a:pydicom:pydicom:*:*:*:*:*:python:*:*",
"range": [
{
"introduced": "2.0.0"
},
{
"fixed": "3.0.2"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "6414f01a053dff925578799f5a7208d2ae585e82"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v3.0.2",
"range": [
{
"fixed": "20aa4b73aef76bffb6fbc46a8827588dfa9bb89d"
}
],
"source": "REFERENCES_TAG"
}
]
}