CVE-2025-71347: Picklescan

High severity, CVSS 8.1. EPSS: 0.6% chance of exploitation in the next 30 days.

picklescan before 0.0.33 fails to detect malicious pickle files using numpy.f2py.crackfortran.param_eval function in reduce methods, allowing attackers to bypass security checks. Remote attackers can embed undetected code in pickle files that executes during deserialization, enabling arbitrary code execution in applications loading untrusted pickle data.

Affected products

• Picklescan Picklescan: before 0.0.33 (fixed in 0.0.33)

Published 2026-07-04. Last modified 2026-10-05.