CVE-2025-71323

Critical

Description

picklescan before 0.0.33 fails to block the ctypes module, allowing attackers to achieve remote code execution by invoking direct syscalls and accessing raw memory. Attackers can craft malicious pickle files using ctypes.WinDLL to load kernel32.dll and execute arbitrary commands, bypassing sandbox protections and gadget chain detection.

SeverityCritical

CVSS9.8

Exploit probability—

ProductPicklescan

PublishedJun 17, 2026

First seenJun 17, 2026

Weakness typeCWE-184CWE-184

How to fix

Update

picklescan0.0.33 or later

Vendor advisories

github.com/mmaitre314/picklescan/security/advisories/GHSA-4675-36f9-wf6r

Affected products

Product	Affected versions	Fixed in
picklescanPyPI	v < 0.0.33	0.0.33

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