Critical 9.1HealthcarePublished Jun 25, 2026

CVE-2026-56445pydicom pynetdicom Library Path Traversal

Updated under an hour ago (Oct 27, 2026, 7:00 AM ET)

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It affects pydicom pynetdicom Library. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for pydicom pynetdicom Library

Exploited in the last 30 days

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.

CVSS: 9.1 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Weakness (CWE): CWE-22
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: icscert
NVD analysis: Deferred
Record last updated: Jun 26, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

pydicom pynetdicom Library pydicom:pynetdicom_library (from the name)	from 1.0.0 through 3.0.4	CNA record

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.