PYSEC-2026-4021

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/monai/PYSEC-2026-4021.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2026-4021
Aliases
Published
2026-09-27T02:17:23Z
Modified
2026-10-01T09:15:05Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

MONAI before 1.5.2 contains a deserialization of untrusted data vulnerability in the algo_from_pickle function in monai/auto3dseg/utils.py. The function reads a .pkl file and passes its contents to pickle.loads without validating the data source or content. If an application invokes algo_from_pickle on an attacker-supplied pickle file, an object defining reduce is executed during deserialization, resulting in arbitrary code execution in the context of the application.

References

Affected packages

PyPI / monai

Package

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.5.2

Affected versions

0.*
0.0.1
0.1.0
0.2.0
0.3.0
0.4.0
0.5.0
0.5.1
0.5.2
0.5.3
0.6.0
0.7.0
0.8.0
0.8.1
0.9.0
0.9.1
1.*
1.0.0
1.0.1
1.1.0
1.2.0
1.3.0
1.3.1
1.3.2rc1
1.3.2
1.3.3rc1
1.4.0rc1
1.4.0rc2
1.4.0rc3
1.4.0rc4
1.4.0rc5
1.4.0rc6
1.4.0rc7
1.4.0rc8
1.4.0rc9
1.4.0rc10
1.4.0rc11
1.4.0rc12
1.4.0
1.4.1rc1
1.5.0rc1
1.5.0
1.5.1
1.5.2rc1

Database specific

source
"https://github.com/pypa/advisory-database/blob/main/vulns/monai/PYSEC-2026-4021.yaml"