{"id":"CVE-2026-44035","aliases":["DEBIAN-CVE-2026-44035","EUVD-2026-94938","GHSA-wqrm-3wjh-xj38","UBUNTU-CVE-2026-44035"],"status":"published","title":"Uncontrolled recursion in DCMTK DICOMDIR parsing allows denial of service","description":"Uncontrolled recursion in DcmDicomDir::moveRecordToTree() in dcmdata/libsrc/dcdicdir.cc of OFFIS DCMTK 3.7.0 allows an attacker to cause a denial of service (stack exhaustion and process crash) via a crafted DICOMDIR file with a deeply chained sequence of directory records linked through the Offset of Referenced Lower-Level Directory Entity attribute. Any application that opens the DICOMDIR is affected, including dcmgpdir and media viewers built on DCMTK. The issue is fixed in commit ca761f7f3dcaaddaa95be87cf5d736138d7c3a9f.","severity":{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00105,"percentile":0.01081,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-674"],"published":"2026-10-08T12:55:10Z","modified":"2026-10-20T17:21:11Z","affected":[{"source":"osv","ecosystem":"Debian:12","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.7-11","3.6.7-12","3.6.7-13","3.6.7-14","3.6.7-15","3.6.7-8","3.6.7-9","3.6.7-9.1","3.6.7-9~deb12u1","3.6.7-9~deb12u2","3.6.7-9~deb12u3","3.6.7-9~deb12u4","3.6.8-1","3.6.8-2","3.6.8-3","3.6.8-4","3.6.8-5","3.6.8-6","3.6.8-7","3.6.8~git20221024.b8950f9-1","3.6.8~git20221024.b8950f9-2","3.6.8~git20221024.b8950f9-3","3.6.8~git20231027.1549d8c-1","3.6.8~git20231027.1549d8c-2","3.6.9-1","3.6.9-2","3.6.9-3","3.6.9-4","3.6.9-5","3.6.9-6","3.7.0+really3.6.9-1","3.7.0+really3.7.0-0+exp1","3.7.0+really3.7.0-1","3.7.0+really3.7.0-2","3.7.0+really3.7.0-3","3.7.0+really3.7.0-4","3.7.0+really3.7.0-5","3.7.0+really3.7.0-6","3.7.0+really3.7.0-7","3.7.0-1"]},{"source":"osv","ecosystem":"Debian:13","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.9-5","3.6.9-5+deb13u1","3.6.9-5+deb13u2","3.6.9-5+deb13u3","3.6.9-6","3.7.0+really3.6.9-1","3.7.0+really3.7.0-0+exp1","3.7.0+really3.7.0-1","3.7.0+really3.7.0-2","3.7.0+really3.7.0-3","3.7.0+really3.7.0-4","3.7.0+really3.7.0-5","3.7.0+really3.7.0-6","3.7.0+really3.7.0-7","3.7.0-1"]},{"source":"osv","ecosystem":"Debian:14","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.9-5","3.6.9-6","3.7.0+really3.6.9-1","3.7.0+really3.7.0-0+exp1","3.7.0+really3.7.0-1","3.7.0+really3.7.0-2","3.7.0+really3.7.0-3","3.7.0+really3.7.0-4","3.7.0+really3.7.0-5","3.7.0+really3.7.0-6","3.7.0+really3.7.0-7","3.7.0-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.0-15.1","3.6.1~20150629-5","3.6.1~20150924-4","3.6.1~20150924-5","3.6.1~20150924-5ubuntu0.1~esm1","3.6.1~20150924-5ubuntu0.1~esm2","3.6.1~20150924-5ubuntu0.1~esm3"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.2-2","3.6.2-2build1","3.6.2-3","3.6.2-3build1","3.6.2-3build2","3.6.2-3build3","3.6.2-3ubuntu0.1~esm1","3.6.2-3ubuntu0.1~esm2","3.6.2-3ubuntu0.1~esm3"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.4-2.1","3.6.4-2.1build1","3.6.4-2.1build2","3.6.4-2.1ubuntu0.1~esm1","3.6.4-2.1ubuntu0.1","3.6.4-2.1ubuntu0.1+esm1","3.6.4-2.1ubuntu0.2","3.6.4-2.1ubuntu0.2+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.5-1","3.6.6-3ubuntu1","3.6.6-3ubuntu2","3.6.6-4","3.6.6-5","3.6.6-5ubuntu0.1~esm1","3.6.6-5ubuntu0.1~esm2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.7-9","3.6.7-9.1build2","3.6.7-9.1build3","3.6.7-9.1build4","3.6.7-9.1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.7.0+really3.6.9-1","3.7.0+really3.7.0-2","3.7.0+really3.7.0-5","3.7.0+really3.7.0-6","3.7.0+really3.7.0-7ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.9-5build1","3.6.9-6","3.7.0+really3.6.9-1"]}],"products":[{"vendor":"offis","product":"dcmtk"}],"references":[{"url":"https://support.dcmtk.org/redmine/issues/1215","tags":["issue-tracking","vendor-advisory","web","report"]},{"url":"https://github.com/DCMTK/dcmtk/commit/ca761f7f3dcaaddaa95be87cf5d736138d7c3a9f","tags":["patch","fix","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44035"},{"url":"https://github.com/advisories/GHSA-wqrm-3wjh-xj38"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-44035","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-44035","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-44035","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-44035","title":"Uncontrolled recursion in DCMTK DICOMDIR parsing allows denial of service","description":"Uncontrolled recursion in DcmDicomDir::moveRecordToTree() in dcmdata/libsrc/dcdicdir.cc of OFFIS DCMTK 3.7.0 allows an attacker to cause a denial of service (stack exhaustion and process crash) via a crafted DICOMDIR file with a deeply chained sequence of directory records linked through the Offset of Referenced Lower-Level Directory Entity attribute. Any application that opens the DICOMDIR is affected, including dcmgpdir and media viewers built on DCMTK. The issue is fixed in commit ca761f7f3dcaaddaa95be87cf5d736138d7c3a9f.","status":"published","published":"2026-10-08T12:55:10.263Z","modified":"2026-10-08T14:09:00.382Z","cvss":[{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-674"],"updated_at":"2026-11-02T13:42:49.132798Z"}],"euvd":[{"id":"EUVD-2026-94938","description":"Uncontrolled recursion in DcmDicomDir::moveRecordToTree() in dcmdata/libsrc/dcdicdir.cc of OFFIS DCMTK 3.7.0 allows an attacker to cause a denial of service (stack exhaustion and process crash) via a crafted DICOMDIR file with a deeply chained sequence of directory records linked through the Offset of Referenced Lower-Level Directory Entity attribute. Any application that opens the DICOMDIR is affected, including dcmgpdir and media viewers built on DCMTK. The issue is fixed in commit ca761f7f3dcaaddaa95be87cf5d736138d7c3a9f.","status":"published","published":"2026-10-08T12:55:10Z","modified":"2026-10-08T14:09:00Z","cvss":[{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T17:27:32.642438Z"}],"ghsa":[{"id":"GHSA-wqrm-3wjh-xj38","title":"Uncontrolled recursion in DcmDicomDir::moveRecordToTree() in dcmdata/libsrc/dcdicdir.cc of OFFIS...","description":"Uncontrolled recursion in DcmDicomDir::moveRecordToTree() in dcmdata/libsrc/dcdicdir.cc of OFFIS DCMTK 3.7.0 allows an attacker to cause a denial of service (stack exhaustion and process crash) via a crafted DICOMDIR file with a deeply chained sequence of directory records linked through the Offset of Referenced Lower-Level Directory Entity attribute. Any application that opens the DICOMDIR is affected, including dcmgpdir and media viewers built on DCMTK. The issue is fixed in commit ca761f7f3dcaaddaa95be87cf5d736138d7c3a9f.","status":"published","published":"2026-10-08T15:32:58Z","modified":"2026-10-08T15:32:58Z","cvss":[{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-674"],"updated_at":"2026-11-02T15:12:56.476072Z"}],"nvd":[{"id":"CVE-2026-44035","description":"Uncontrolled recursion in DcmDicomDir::moveRecordToTree() in dcmdata/libsrc/dcdicdir.cc of OFFIS DCMTK 3.7.0 allows an attacker to cause a denial of service (stack exhaustion and process crash) via a crafted DICOMDIR file with a deeply chained sequence of directory records linked through the Offset of Referenced Lower-Level Directory Entity attribute. Any application that opens the DICOMDIR is affected, including dcmgpdir and media viewers built on DCMTK. The issue is fixed in commit ca761f7f3dcaaddaa95be87cf5d736138d7c3a9f.","status":"published","published":"2026-10-08T13:17:17.497Z","modified":"2026-10-08T21:10:00.133Z","cvss":[{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-674"],"updated_at":"2026-11-02T14:12:55.142936Z"}],"osv":[{"id":"CVE-2026-44035","description":"Uncontrolled recursion in DcmDicomDir::moveRecordToTree() in dcmdata/libsrc/dcdicdir.cc of OFFIS DCMTK 3.7.0 allows an attacker to cause a denial of service (stack exhaustion and process crash) via a crafted DICOMDIR file with a deeply chained sequence of directory records linked through the Offset of Referenced Lower-Level Directory Entity attribute. Any application that opens the DICOMDIR is affected, including dcmgpdir and media viewers built on DCMTK. The issue is fixed in commit ca761f7f3dcaaddaa95be87cf5d736138d7c3a9f.","status":"published","published":"2026-10-08T13:17:17.497Z","modified":"2026-10-20T17:21:11.784184327Z","cvss":[{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"updated_at":"2026-11-02T15:45:04.820169Z"},{"id":"DEBIAN-CVE-2026-44035","description":"Uncontrolled recursion in DcmDicomDir::moveRecordToTree() in dcmdata/libsrc/dcdicdir.cc of OFFIS DCMTK 3.7.0 allows an attacker to cause a denial of service (stack exhaustion and process crash) via a crafted DICOMDIR file with a deeply chained sequence of directory records linked through the Offset of Referenced Lower-Level Directory Entity attribute. Any application that opens the DICOMDIR is affected, including dcmgpdir and media viewers built on DCMTK. The issue is fixed in commit ca761f7f3dcaaddaa95be87cf5d736138d7c3a9f.","status":"published","published":"2026-10-08T13:17:17.497Z","modified":"2026-10-09T11:00:08.067238994Z","cvss":[{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"updated_at":"2026-11-02T15:45:55.669088Z"},{"id":"UBUNTU-CVE-2026-44035","description":"Uncontrolled recursion in DcmDicomDir::moveRecordToTree() in dcmdata/libsrc/dcdicdir.cc of OFFIS DCMTK 3.7.0 allows an attacker to cause a denial of service (stack exhaustion and process crash) via a crafted DICOMDIR file with a deeply chained sequence of directory records linked through the Offset of Referenced Lower-Level Directory Entity attribute. Any application that opens the DICOMDIR is affected, including dcmgpdir and media viewers built on DCMTK. The issue is fixed in commit ca761f7f3dcaaddaa95be87cf5d736138d7c3a9f.","status":"published","published":"2026-10-08T13:17:00Z","modified":"2026-10-17T12:58:18.595803128Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"},{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:56:22.075798Z"}]}}