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TI-2026-40784 Aliases CVE-2026-56445GHSA-f3pc-ww42-cwqp

pydicom pynetdicom Library Path Traversal

Priority MEDIUM 47CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0064 50th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
pydicompynetdicom Library1.0.0 – 3.0.4—No fix listedCNA
  • pynetdicom Library Vendorpydicom Affected 1.0.0 – 3.0.4 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-56445
  2. 2026-10-03 Alias added: GHSA-f3pc-ww42-cwqp
  3. 2026-10-23 EPSS moved to the 50th–90th percentile

References

Other 3

  • TI-2026-25203 pydicom: Path traversal in FileSet/DICOMDIR ReferencedFileID allows file access outside the File-set root CVSS 3.1HIGH 7.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences