CVE-2025-71344: Picklescan

High severity, CVSS 8.1. EPSS: 0.5% chance of exploitation in the next 30 days.

picklescan before 0.0.30 (affected versions 0.0.26 and earlier) fails to detect the ensurepip._run_pip built-in function when scanning pickle files, allowing attackers to execute arbitrary code. Malicious pickle files embedding ensurepip._run_pip calls in __reduce__ methods bypass picklescan detection and achieve remote code execution upon pickle.load() invocation.

Affected products

• Picklescan Picklescan: before 0.0.30 (fixed in 0.0.30)

Published 2026-06-22. Last modified 2026-10-05.