by Kastro
Paper/Archive/CVE-2026-56445

CVE-2026-56445

pydicom pynetdicom Library — pydicom pynetdicom Library Path Traversal

EPSS 0.6%CVSS 9.1
critical.is priorityof 100
37
CVSS 9.1 (CNA)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 50.7.507 × 2010.1No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
pynetdicom Library1.0.0 – 3.0.4–CNA

Scores by source

icscert (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
icscert (CNA)8.8CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refgithub.com/pydicom/pynetdicomrefcisa.gov/news-events/ics-medical-advisories/icsma-26-176-01refgithub.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-176-01.json