{"id":"CVE-2026-3650","state":"PUBLISHED","title":"Grassroots DICOM Missing release of memory after effective lifetime","description":"A memory leak exists in the Grassroots DICOM library (GDCM). The bug occurs when parsing malformed DICOM files with non-standard VR types in file meta information. The vulnerability leads to vast memory allocations and resource depletion, triggering a denial-of-service condition. A maliciously crafted file can fill the heap in a single read operation without properly releasing it.","publishedAt":"2026-03-26T21:10:30.864Z","updatedAt":"2026-03-27T19:39:21.092Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"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","source":"icscert"},"assigner":"icscert","products":["Grassroots Grassroots DICOM (GDCM)"],"affected":[{"vendor":"Grassroots","product":"Grassroots DICOM (GDCM)","defaultStatus":"unaffected","versions":[{"version":"3.2.2","status":"affected","versionType":"custom"}]}],"references":["https://sourceforge.net/projects/gdcm/","https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-083-01","https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-083-01.json"],"weaknesses":["CWE-401"],"ingestedAt":"2026-10-29T20:11:50.837Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/3xxx/CVE-2026-3650.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-3650","state":"PUBLISHED","datePublished":"2026-03-26T21:10:30.864Z","dateUpdated":"2026-03-27T19:39:21.092Z","assignerShortName":"icscert","assignerOrgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateReserved":"2026-03-06T16:24:00.662Z"},"containers":{"cna":{"title":"Grassroots DICOM Missing release of memory after effective lifetime","descriptions":[{"lang":"en","value":"A memory leak exists in the Grassroots DICOM library (GDCM). The bug occurs when parsing malformed DICOM files with non-standard VR types in file meta information. The vulnerability leads to vast memory allocations and resource depletion, triggering a denial-of-service condition. A maliciously crafted file can fill the heap in a single read operation without properly releasing it."}],"affected":[{"vendor":"Grassroots","product":"Grassroots DICOM (GDCM)","defaultStatus":"unaffected","versions":[{"version":"3.2.2","status":"affected","versionType":"custom"}]}],"references":[{"url":"https://sourceforge.net/projects/gdcm/"},{"url":"https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-083-01"},{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-083-01.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":"NONE","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":8.7,"vectorString":"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"}},{"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":"NONE","availabilityImpact":"HIGH","baseSeverity":"HIGH","baseScore":7.5,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-401","lang":"en","description":"CWE-401","type":"CWE"}]}],"providerMetadata":{"shortName":"icscert","orgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateUpdated":"2026-03-26T21:10:30.864Z"},"workarounds":[{"lang":"en","value":"The maintainer of Grassroots DICOM (GDCM) has not responded to \nrequests to work with CISA to mitigate this vulnerability. For update \ninformation refer to the software page on SourceForge.\n\n https://sourceforge.net/projects/gdcm/","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>The maintainer of Grassroots DICOM (GDCM) has not responded to \nrequests to work with CISA to mitigate this vulnerability. For update \ninformation refer to the software page on SourceForge.</p><p><a href=\"https://sourceforge.net/projects/gdcm/\" title=\"(opens in a new window)\">https://sourceforge.net/projects/gdcm/</a></p>"}]}],"credits":[{"lang":"en","value":"Volodymyr Bihunenko, Mykyta Mudryi, and Markiian Chaklosh of ARIMLABS reported this vulnerability to CISA","type":"finder"}],"source":{"advisory":"ICSMA-26-083-01","discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.1"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-3650","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-03-27T19:28:28.040891Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-27T19:39:21.092Z"}}]}}}