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.

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Fixes

Solution

Update to a DCMTK version that contains commit 87f256d73e30656a822bf7d76d1cf1d9bb693954. As of the publication date, no tagged release after DCMTK 3.7.0 includes this fix, so apply the commit or build from the current master branch.


Workaround

No workaround given by the vendor.

History

Thu, 08 Oct 2026 13:00:00 +0000

Type Values Removed Values Added
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.
Title Uncontrolled recursion in DCMTK xml2dcm allows denial of service
First Time appeared Offis
Offis dcmtk
Weaknesses CWE-674
CPEs cpe:2.3:a:offis:dcmtk:3.7.0:*:*:*:*:*:*:*
Vendors & Products Offis
Offis dcmtk
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: securin

Published:

Updated: 2026-10-08T12:55:11.305Z

Reserved: 2026-05-05T02:49:00.667Z

Link: CVE-2026-44036

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-08T13:17:17.653

Modified: 2026-10-08T13:17:17.653

Link: CVE-2026-44036

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-08T14:45:17Z

Weaknesses