{"id":"CVE-2026-56445","state":"PUBLISHED","title":"pydicom pynetdicom Library Path Traversal","description":"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.","publishedAt":"2026-06-25T20:46:44.045Z","updatedAt":"2026-06-26T13:05:22.290Z","severity":{"score":8.8,"label":"High","version":"4.0","vector":"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","source":"icscert"},"assigner":"icscert","products":["pydicom pynetdicom Library"],"affected":[{"vendor":"pydicom","product":"pynetdicom Library","defaultStatus":"unaffected","versions":[{"version":"1.0.0","status":"affected","lessThanOrEqual":"3.0.4","versionType":"custom"}]}],"references":["https://github.com/pydicom/pynetdicom","https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-176-01","https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-176-01.json"],"weaknesses":["CWE-22"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/56xxx/CVE-2026-56445.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-56445","state":"PUBLISHED","datePublished":"2026-06-25T20:46:44.045Z","dateUpdated":"2026-06-26T13:05:22.290Z","assignerShortName":"icscert","assignerOrgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateReserved":"2026-06-22T15:47:37.774Z"},"containers":{"cna":{"title":"pydicom pynetdicom Library Path Traversal","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."}],"affected":[{"vendor":"pydicom","product":"pynetdicom Library","defaultStatus":"unaffected","versions":[{"version":"1.0.0","status":"affected","lessThanOrEqual":"3.0.4","versionType":"custom"}]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"providerMetadata":{"shortName":"icscert","orgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateUpdated":"2026-06-25T20:46:44.045Z"},"datePublic":"2026-06-25T17:00:00.000Z","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 Schönefeld 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"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-26T13:05:14.229106Z","id":"CVE-2026-56445","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-26T13:05:22.290Z"}}]}}}