CVSS 3.1
7.8 highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HCVE-2026-32711
High (7.8) in pydicom pydicom. EPSS 0.3% chance of exploitation in the next 30 days. Fixed in pydicom 2.4.5, 3.0.2.
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.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 21% of CVEs (scores of 2026-10-31)
- CWE
- CWE-22
- Published
- Modified
- Record from
- the NVD, synced
Affected
- pydicom:pydicom
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-v856-2rf8-9f28 | PyPI | pydicom | >=3.0.0 <3.0.2 | 3.0.2 |
| GHSA-v856-2rf8-9f28 | PyPI | pydicom | <2.4.5 | 2.4.5 |
| PYSEC-2026-2266 | PyPI | pydicom | >=2.0.0 <3.0.2 | 3.0.2 |