CVE-2026-32711

NameCVE-2026-32711
Descriptionpydicom 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.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1131492

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
pydicom (PTS)bullseye2.0.0-1vulnerable
bookworm2.3.1-1vulnerable
trixie2.4.3-2vulnerable
forky, sid2.4.3-3vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
pydicomsource(unstable)(unfixed)1131492

Notes

https://github.com/pydicom/pydicom/security/advisories/GHSA-v856-2rf8-9f28
Fixed by: https://github.com/pydicom/pydicom/commit/6414f01a053dff925578799f5a7208d2ae585e82 (v3.0.2)

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