Hi,

The following vulnerability was published for dcmtk.

CVE-2026-44036[0]:
| Uncontrolled mutual recursion between
| DcmXMLParseHelper::parseDataSet() and
| DcmXMLParseHelper::parseSequence() in the XML-to-DICOM converter
| (dcmdata/libdcxml/xml2dcm.cc) of OFFIS DCMTK 3.7.0 allows an
| attacker to cause a denial of service (stack exhaustion and process
| crash) via a crafted XML file with deeply nested sequence and item
| elements. The xml2dcm tool and any service that converts untrusted
| XML to DICOM with this code are affected. The issue is fixed in
| commit 87f256d73e30656a822bf7d76d1cf1d9bb693954.


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-2026-44036
https://www.cve.org/CVERecord?id=CVE-2026-44036
[1] https://support.dcmtk.org/redmine/issues/1224
[2] https://github.com/DCMTK/dcmtk/commit/87f256d73e30656a822bf7d76d1cf1d9bb693954

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore