{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-56445", "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "state": "PUBLISHED", "assignerShortName": "icscert", "dateReserved": "2026-06-22T15:47:37.774Z", "datePublished": "2026-06-25T20:46:44.045Z", "dateUpdated": "2026-06-25T20:46:44.045Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "shortName": "icscert", "dateUpdated": "2026-06-25T20:46:44.045Z"}, "title": "pydicom pynetdicom Library Path Traversal", "datePublic": "2026-06-25T17:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-22", "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "type": "CWE"}]}], "affected": [{"vendor": "pydicom", "product": "pynetdicom Library", "versions": [{"status": "affected", "version": "1.0.0", "lessThanOrEqual": "3.0.4", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The qrscp application's C-STORE handler uses a specific instance from attacker-supplied DICOM datasets directly in os.path.join() without sanitization, allowing file writes to arbitrary paths.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "The qrscp application's C-STORE handler uses a specific instance from attacker-supplied DICOM datasets directly in os.path.join() without sanitization, allowing file writes to arbitrary paths."}]}], "references": [{"url": "https://github.com/pydicom/pynetdicom"}, {"url": "https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-176-01"}, {"url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-176-01.json"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 8.8, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "CRITICAL", "baseScore": 9.1, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H"}}], "workarounds": [{"lang": "en", "value": "The maintainer of pynetdicom has not responded to requests to work with \nCISA to mitigate this vulnerability. For update information, refer to \nthe github page \n[https://github.com/pydicom/pynetdicom](https://github.com/pydicom/pynetdicom).", "supportingMedia": [{"type": "text/html", "base64": false, "value": "The maintainer of pynetdicom has not responded to requests to work with \nCISA to mitigate this vulnerability. For update information, refer to \nthe github page \n[https://github.com/pydicom/pynetdicom](https://github.com/pydicom/pynetdicom)."}]}], "credits": [{"lang": "en", "value": "Simon Weber and Volker Sch\u00f6nefeld of Machine Spirits UG reported this vulnerability to CISA.", "type": "finder"}], "source": {"advisory": "ICSMA-26-176-01", "discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}}}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.0.0,3.0.4]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "pynetdicom Library", "source": "cna", "vendor": "pydicom"}, "product": "pynetdicom_library", "vendor": "pydicom"}], "created": "2026-06-25T23:30:16.935631+00:00", "updated": "2026-06-26T09:36:20.180178+00:00", "vendors": ["pydicom", "pydicom$PRODUCT$pynetdicom_library"]}