CVE-2025-71355

High

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.

SeverityHigh

CVSS7.6

Exploit probability—

ProductPicklescan

PublishedJun 30, 2026

First seenJun 30, 2026

Weakness typeCWE-184CWE-184

How to fix

Update

picklescan0.0.25 or later

Vendor advisories

github.com/mmaitre314/picklescan/security/advisories/GHSA-fj43-3qmq-673f

Affected products

Product	Affected versions	Fixed in
picklescanPyPI	v < 0.0.25	0.0.25

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