CVE-2026-56445 (GCVE-0-2026-56445)
Vulnerability from cvelistv5 – Published: 2026-06-25 20:46 – Updated: 2026-06-25 20:46
VLAI
Title
pydicom pynetdicom Library Path Traversal
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.
Severity
9.1 (Critical)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| pydicom | pynetdicom Library |
Affected:
1.0.0 , ≤ 3.0.4
(custom)
|
Date Public
2026-06-25 17:00
Credits
{
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"affected": [
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"product": "pynetdicom Library",
"vendor": "pydicom",
"versions": [
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"status": "affected",
"version": "1.0.0",
"versionType": "custom"
}
]
}
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"credits": [
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"type": "finder",
"value": "Simon Weber and Volker Sch\u00f6nefeld of Machine Spirits UG reported this vulnerability to CISA."
}
],
"datePublic": "2026-06-25T17:00:00.000Z",
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}
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"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
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"description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-25T20:46:44.045Z",
"orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
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"references": [
{
"url": "https://github.com/pydicom/pynetdicom"
},
{
"url": "https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-176-01"
},
{
"url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-176-01.json"
}
],
"source": {
"advisory": "ICSMA-26-176-01",
"discovery": "EXTERNAL"
},
"title": "pydicom pynetdicom Library Path Traversal",
"workarounds": [
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}
],
"value": "The maintainer of pynetdicom has not responded to requests to work with \nCISA to mitigate this vulnerability. For update information, refer to \nthe github page \n[https://github.com/pydicom/pynetdicom](https://github.com/pydicom/pynetdicom)."
}
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"dateUpdated": "2026-06-25T20:46:44.045Z",
"state": "PUBLISHED"
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}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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