CVE-2026-44037CWE-674

CVE-2026-44037

Medium · published October 8, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
1.0
In the wild
Unconfirmed
What it is

Uncontrolled mutual recursion between DcmJSONReader::parseDataSet(), DcmJSONReader::parseElement() and DcmJSONReader::parseSequence() in dcmdata/libsrc/dcjsonrd.cc of OFFIS DCMTK 3.7.0 allows an attacker to cause a denial of service (stack exhaustion and process crash) via a crafted DICOM JSON document with deeply nested sequence (SQ) values. The json2dcm tool and any service that converts untrusted DICOM JSON (for example, DICOMweb payloads) with this reader are affected. The issue is fixed in commit cf955e64c35a1e07ba10698f639d5dcdec53b9d7.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS v4.0
6.8 · 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
EPSS
0.00105 · 1.0th percentile
Weakness
CWE-674 · Uncontrolled Recursion
Published
2026-10-08T17:17Z
References (2)
https://github.com/DCMTK/dcmtk/commit/cf955e64c35a1e07ba10698f639d5dcdec53b9d7 · 33c584b5-0579-4c06-b2a0-8d8329fcab9chttps://support.dcmtk.org/redmine/issues/1225 · 33c584b5-0579-4c06-b2a0-8d8329fcab9c
EPSS history
Timeline
  • 10 OCT 03:29Z
    EPSS moved — → 0%
    epss
  • 08 OCT 12:55Z
    Uncontrolled recursion in DCMTK JSON reader allows denial of service
    cvelistv5
  • 08 OCT 12:55Z
    Uncontrolled recursion in DCMTK JSON reader allows denial of service
    cvelistv5