CVE-2026-32711Public exploit

File access via unchecked ReferencedFileID paths

Published Mar 20, 2026 · Updated Mar 20, 2026

Path traversal in pydicom 2.0.0-rc.1 through 3.0.1 allows context-dependent attackers to access files outside a File-set root. RecordNode._file_id turns ReferencedFileID into a path, while FileSet.load() checks existence but not whether the resolved path remains under the root. Processing an untrusted DICOMDIR through FileSet copy or write workflows can read or copy external files and, in some flows, move or delete them.

CVSS severity7.8
High
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in pydicom 2.0.0-rc.1 through 3.0.1 allows context-dependent attackers to access files outside a File-set root. RecordNode._file_id turns ReferencedFileID into a path, while FileSet.load() checks existence but not whether the resolved path remains under the root. Processing an untrusted DICOMDIR through FileSet copy or write workflows can read or copy external files and, in some flows, move or delete them.

The record

CVE
CVE-2026-32711
Published
Mar 20, 2026
Updated
Mar 20, 2026
Vendor
pydicom
Product
pydicom
Classifications
CWE-22, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 2.0.0-rc.1, < 3.0.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

pydicom · pydicomversion=>= 2.0.0-rc.1, < 3.0.2

Published CVSS scores

7.8GitHub, Inc.CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1204.002User Execution: Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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