CVE-2026-44031

Uncontrolled recursion in DcmSequenceOfItems::read() and DcmItem::read() in the dcmdata library of OFFIS DCMTK 3.7.0 allows a remote, unauthenticated attacker to cause a denial of service (stack exhaustion and process crash) via a DICOM dataset containing deeply nested sequences (SQ elements). The dataset can be sent in a C-STORE request to storescp, dcmrecv, dcmqrscp, or any other DICOM service built on DCMTK, because the received dataset is parsed before any authentication takes place. Local tools such as dcmdump also crash when opening such a file. The issue is fixed in commit 885ff0f10372bd589b5f44cea974f28a3964cb0f, which adds a configurable sequence nesting depth limit (default 64).

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/DCMTK/dcmtk/commit/885ff0f10372bd589b5f44cea974f28a3964cb0f
https://support.dcmtk.org/redmine/issues/1191

Configurations

No configuration.

History

08 Oct 2026, 13:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-08 13:17

Updated : 2026-10-08 21:10

NVD link : CVE-2026-44031

Mitre link : CVE-2026-44031

CVE.ORG link : CVE-2026-44031

JSON object : View

Products Affected

No product.

CWE

CWE-674

Uncontrolled Recursion

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