OFFIS DCMTK Toolkit Missing Release of Memory after Effective Lifetime

{
  "id": "ddf2b19d949aa32e2fada07dc58c50b4ca2f242f6041174cfdee636464c37f82",
  "url": "https://osv.dev/vulnerability/CVE-2026-50254",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "OFFIS DCMTK Toolkit Missing Release of Memory after Effective Lifetime",
    "summary": "An unauthenticated remote attacker can repeatedly send a single crafted connection request to leak memory. Against storescp in its default single-process mode, memory grows quickly and the service is eventually killed, after which it stops accepting connections until an operator restarts it.",
    "evidence": "osv:CVE-2026-50254",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-50254",
      "aliases": [
        "CVE-2026-50254"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/dcmtk/dcmtk",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "ccfd10b84ff3c9a40b7b331698aedf06d421fc43"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "3.7.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  }
                ]
              }
            }
          ],
          "versions": [
            "DCMTK-3.7.0",
            "DCMTK-3.6.9",
            "DCMTK-3.6.8",
            "DCMTK-3.6.7",
            "DCMTK-3.6.5",
            "DCMTK-3.6.6",
            "DCMTK-3.6.5+_20191213",
            "DCMTK-3.6.4",
            "DCMTK-3.6.3",
            "DCMTK-3.6.2",
            "DCMTK-3.6.1_20170228",
            "DCMTK-3.6.1_20161102",
            "DCMTK-3.6.1_20160630",
            "DCMTK-3.6.1_20160216",
            "DCMTK-3.6.1_20150924",
            "DCMTK-3.6.1_20150629",
            "DCMTK-3.6.1_20150217",
            "DCMTK-3.6.1_20140617",
            "DCMTK-3.6.1_20131114",
            "DCMTK-3.6.1_20121102",
            "DCMTK-3.6.1_20120831",
            "DCMTK-3.6.1_20120515",
            "DCMTK-3.6.1_20120222",
            "DCMTK-3.6.1_20111208",
            "DCMTK-3.6.1_20110922",
            "DCMTK-3.6.1_20110707",
            "DCMTK-3.6.1_20110519",
            "DCMTK-3.6.1_20110225",
            "DCMTK-3.6.0",
            "DCMTK-3.5.4",
            "DCMTK-3.5.3",
            "DCMTK-3.5.2a",
            "DCMTK-3.5.2",
            "DCMTK-3.5.1",
            "DCMTK-3.5.0",
            "DCMTK-3.4.2",
            "DCMTK-3.4.1",
            "DCMTK-3.4.0",
            "DCMTK-3.3.1",
            "DCMTK-3.3.0",
            "DCMTK-3.2.1",
            "DCMTK-3.2.0",
            "DCMTK-3.1.2",
            "DCMTK-3.1.1",
            "DCMTK-3.1.0",
            "CAR96-3.0.2",
            "CAR96-3.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-50254.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:36.804120284Z",
      "provider": "osv",
      "references": [
        "https://github.com/DCMTK/dcmtk/releases/tag/latest",
        "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-181-01.json",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50254.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-50254",
        "https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-181-01"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-401"
        ],
        "cna_assigner": "icscert",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50254.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-50254",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504334,
  "published_at": "2026-06-30T21:14:01.154+00:00"
}