CVE-2025-71320: Picklescan

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

picklescan before 0.0.33 contains an incomplete deny-list that fails to block pydoc.locate and operator.methodcaller functions, allowing attackers to bypass security checks. Remote attackers can craft malicious pickle files using these unblocked functions to achieve arbitrary code execution when the pickle is deserialized.

Affected products

• Picklescan Picklescan: before 0.0.33 (fixed in 0.0.33)

Published 2026-06-17. Last modified 2026-10-05.