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Bug#1131492: pydicom: CVE-2026-32711

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Source: pydicom
Version: 2.4.3-3
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>
Control: found -1 2.4.3-2
Control: found -1 2.3.1-1
Control: found -1 2.0.0-1

Hi,

The following vulnerability was published for pydicom.

CVE-2026-32711[0]:
| 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.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-32711
    https://www.cve.org/CVERecord?id=CVE-2026-32711
[1] https://github.com/pydicom/pydicom/security/advisories/GHSA-v856-2rf8-9f28
[2] https://github.com/pydicom/pydicom/commit/6414f01a053dff925578799f5a7208d2ae585e82

Regards,
Salvatore

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Bug#1131492: pydicom: CVE-2026-32711 Salvatore Bonaccorso <carnil@debian.org> - 2026-03-21 20:50 +0100

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