CVE-2025-71355

Received Received - Intake

Picklescan Numpy Global Function Bypass in Deserialization

Publication date: 2026-06-30

Last updated on: 2026-06-30

Assigner: VulnCheck

Description

Picklescan before 0.0.25 fails to detect unsafe global functions in the Numpy library, allowing attackers to bypass static analysis and execute arbitrary code during deserialization. Attackers can craft malicious pickle files using numpy.testing._private.utils.runstring within the reduce method to import dangerous libraries like os and execute arbitrary OS commands when the pickle file is loaded.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-06-30

Last Modified

2026-06-30

Generated

2026-07-01

AI Q&A

2026-07-01

EPSS Evaluated

N/A

NVD

CVE-2025-71355

EUVD

EUVD-2025-210388

Affected Vendors & Products

Vendor	Product	Version / Range
numpy	numpy	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-184	The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete.

Attack-Flow Graph

Executive Summary

This vulnerability exists in Picklescan versions before 0.0.25, where it fails to detect unsafe global functions in the Numpy library during static analysis.

Attackers can exploit this by crafting malicious pickle files that use numpy.testing._private.utils.runstring within the reduce method to import dangerous libraries such as os.

When such a malicious pickle file is loaded, it can execute arbitrary OS commands, effectively allowing code execution during deserialization.

Impact Analysis

This vulnerability can allow attackers to execute arbitrary code on your system when a malicious pickle file is deserialized.

Such code execution can lead to unauthorized actions, including running OS commands, which may compromise system integrity, confidentiality, and availability.

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