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Medium

Uncontrolled recursion in DCMTK JSON reader allows denial of service

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-44037

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-44037

DCMTK

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "cpes": [
      "cpe:2.3:a:offis:dcmtk:3.7.0:*:*:*:*:*:*:*"
    ],
    "repo": "https://github.com/DCMTK/dcmtk",
    "vendor": "OFFIS",
    "modules": [
      "dcmdata"
    ],
    "product": "DCMTK",
    "versions": [
      {
        "status": "affected",
        "version": "3.7.0"
      }
    ],
    "programFiles": [
      "dcmdata/libsrc/dcjsonrd.cc"
    ],
    "collectionURL": "https://github.com/DCMTK/dcmtk",
    "defaultStatus": "unknown"
  }
]
Related CVEs
CVE-2026-44037

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#12529 · Revision 1
Added to Heist Feed
Publisher date
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