CVE-2026-44036

Name	CVE-2026-44036
Description	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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
dcmtk (PTS)	bookworm	3.6.7-9~deb12u4	vulnerable
	trixie	3.6.9-5+deb13u3	vulnerable
	forky, sid	3.7.0+really3.7.0-7	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
dcmtk	source	(unstable)	(unfixed)

https://support.dcmtk.org/redmine/issues/1224
Fixed by: https://github.com/DCMTK/dcmtk/commit/87f256d73e30656a822bf7d76d1cf1d9bb693954