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Vulnerability Details :

CVE-2026-21851

Summary
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
Published At-07 Jan, 2026 | 22:27
Updated At-08 Jan, 2026 | 20:09
Rejected At-
Credits

MONAI has Path Traversal (Zip Slip) in NGC Private Bundle Download

MONAI (Medical Open Network for AI) is an AI toolkit for health care imaging. In versions up to and including 1.5.1, a Path Traversal (Zip Slip) vulnerability exists in MONAI's `_download_from_ngc_private()` function. The function uses `zipfile.ZipFile.extractall()` without path validation, while other similar download functions in the same codebase properly use the existing `safe_extract_member()` function. Commit 4014c8475626f20f158921ae0cf98ed259ae4d59 fixes this issue.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
â–¼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:GitHub_M
Assigner Org ID:a0819718-46f1-4df5-94e2-005712e83aaa
Published At:07 Jan, 2026 | 22:27
Updated At:08 Jan, 2026 | 20:09
Rejected At:
â–¼CVE Numbering Authority (CNA)
MONAI has Path Traversal (Zip Slip) in NGC Private Bundle Download

MONAI (Medical Open Network for AI) is an AI toolkit for health care imaging. In versions up to and including 1.5.1, a Path Traversal (Zip Slip) vulnerability exists in MONAI's `_download_from_ngc_private()` function. The function uses `zipfile.ZipFile.extractall()` without path validation, while other similar download functions in the same codebase properly use the existing `safe_extract_member()` function. Commit 4014c8475626f20f158921ae0cf98ed259ae4d59 fixes this issue.

Affected Products
Vendor
Project-MONAI
Product
MONAI
Versions
Affected
  • <= 1.5.1
Problem Types
TypeCWE IDDescription
CWECWE-22CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Type: CWE
CWE ID: CWE-22
Description: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Metrics
VersionBase scoreBase severityVector
3.15.3MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
Version: 3.1
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-9rg3-9pvr-6p27
x_refsource_CONFIRM
https://github.com/Project-MONAI/MONAI/commit/4014c8475626f20f158921ae0cf98ed259ae4d59
x_refsource_MISC
Hyperlink: https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-9rg3-9pvr-6p27
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/Project-MONAI/MONAI/commit/4014c8475626f20f158921ae0cf98ed259ae4d59
Resource:
x_refsource_MISC
â–¼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-9rg3-9pvr-6p27
exploit
Hyperlink: https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-9rg3-9pvr-6p27
Resource:
exploit
Information is not available yet
â–¼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security-advisories@github.com
Published At:07 Jan, 2026 | 23:15
Updated At:02 Feb, 2026 | 15:13

MONAI (Medical Open Network for AI) is an AI toolkit for health care imaging. In versions up to and including 1.5.1, a Path Traversal (Zip Slip) vulnerability exists in MONAI's `_download_from_ngc_private()` function. The function uses `zipfile.ZipFile.extractall()` without path validation, while other similar download functions in the same codebase properly use the existing `safe_extract_member()` function. Commit 4014c8475626f20f158921ae0cf98ed259ae4d59 fixes this issue.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.15.3MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
Type: Secondary
Version: 3.1
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
CPE Matches

project-monai
project-monai
>>monai>>Versions up to 1.5.1(inclusive)
cpe:2.3:a:project-monai:monai:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-22Secondarysecurity-advisories@github.com
CWE ID: CWE-22
Type: Secondary
Source: security-advisories@github.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/Project-MONAI/MONAI/commit/4014c8475626f20f158921ae0cf98ed259ae4d59security-advisories@github.com
Patch
https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-9rg3-9pvr-6p27security-advisories@github.com
Exploit
Vendor Advisory
Mitigation
https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-9rg3-9pvr-6p27134c704f-9b21-4f2e-91b3-4a467353bcc0
Exploit
Vendor Advisory
Mitigation
Hyperlink: https://github.com/Project-MONAI/MONAI/commit/4014c8475626f20f158921ae0cf98ed259ae4d59
Source: security-advisories@github.com
Resource:
Patch
Hyperlink: https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-9rg3-9pvr-6p27
Source: security-advisories@github.com
Resource:
Exploit
Vendor Advisory
Mitigation
Hyperlink: https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-9rg3-9pvr-6p27
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Resource:
Exploit
Vendor Advisory
Mitigation

Change History

0
Information is not available yet

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