{"id":"CVE-2026-50254","summary":"OFFIS DCMTK Toolkit Missing Release of Memory after Effective Lifetime","details":"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.","modified":"2026-07-08T08:13:43.870104458Z","published":"2026-06-30T21:14:01.154Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50254.json","cwe_ids":["CWE-401"],"cna_assigner":"icscert"},"references":[{"type":"WEB","url":"https://github.com/DCMTK/dcmtk/releases/tag/latest"},{"type":"WEB","url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-181-01.json"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50254.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50254"},{"type":"ADVISORY","url":"https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-181-01"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/dcmtk/dcmtk","events":[{"introduced":"0"},{"last_affected":"ccfd10b84ff3c9a40b7b331698aedf06d421fc43"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"3.7.0"}],"source":"AFFECTED_FIELD"}}],"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"}}],"schema_version":"1.7.5","severity":[{"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"}]}