OFFIS DCMTK 3.7.0 XML-to-DICOM converter xml2dcm.cc parseSequence recursion

CVSS Meta Temp Score
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4.8$0-$5k1.96+

Summaryinfo

A vulnerability, which was classified as problematic, has been found in OFFIS DCMTK 3.7.0. This issue affects the function DcmXMLParseHelper::parseDataSet/DcmXMLParseHelper::parseSequence of the file dcmdata/libdcxml/xml2dcm.cc of the component XML-to-DICOM converter. Performing a manipulation results in recursion. This vulnerability was named CVE-2026-44036. The attack may be initiated remotely. There is no available exploit. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in OFFIS DCMTK 3.7.0. This affects the function DcmXMLParseHelper::parseDataSet/DcmXMLParseHelper::parseSequence of the file dcmdata/libdcxml/xml2dcm.cc of the component XML-to-DICOM converter. The manipulation with an unknown input leads to a recursion vulnerability. CWE is classifying the issue as CWE-674. The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack. This is going to have an impact on availability. The summary by CVE is:

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.

The advisory is shared at support.dcmtk.org. This vulnerability is uniquely identified as CVE-2026-44036 since 05/05/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Applying the patch 87f256d73e30656a822bf7d76d1cf1d9bb693954 is able to eliminate this problem.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.5
CNA Vector (securin): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Recursion
CWE: CWE-674 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 87f256d73e30656a822bf7d76d1cf1d9bb693954

Timelineinfo

05/05/2026 CVE reserved
10/08/2026 +156 days Advisory disclosed
10/08/2026 +0 days VulDB entry created
10/08/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: support.dcmtk.org
Status: Confirmed

CVE: CVE-2026-44036 (🔒)
GCVE (CVE): GCVE-0-2026-44036
GCVE (VulDB): GCVE-100-415353

Entryinfo

Created: 10/08/2026 15:10
Changes: 10/08/2026 15:10 (77)
Complete: 🔍
Cache ID: 216::103

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