CVE-2026-56315: Picklescan

Critical severity, CVSS 9.8. EPSS: 1.1% chance of exploitation in the next 30 days.

picklescan before 1.0.4 fails to block at least seven Python standard library modules (including uuid, _osx_support, _aix_support, _pyrepl.pager, and imaplib) exposing eight functions that provide direct arbitrary command execution. Attackers can craft malicious pickle files importing these unblocked modules to achieve remote code execution while bypassing picklescan's safety validation entirely.

Affected products

• Picklescan Picklescan: before 1.0.4 (fixed in 1.0.4)

Published 2026-06-23. Last modified 2026-06-23.