Vulnerability · Published Jun 25, 2026 · Assigned by icscert
CVE-2026-56445pydicom pynetdicom Library Path Traversal
Critical 9.1
In plain English
A critical-severity path traversal in pynetdicom Library from pydicom. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities).
Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)0.6%top 49.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| pydicom | pynetdicom Library | 1.0.0 – through 3.0.4 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H