CVE-2025-71360: picklescan - Remote Code Execution via Undetected idlelib.calltip.get_entity

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-04 · updated 2026-10-12
Weakness: CWE-502

Description

picklescan before 0.0.29 fails to detect malicious pickle files using idlelib.calltip.get_entity function in reduce methods. Attackers can embed undetected code in pickle files that executes remote commands when loaded by victims.

Affected products

picklescan: before 0.0.29 — fixed in 0.0.29

How to fix

Upgrade to a fixed version: picklescan 0.0.29. Check the vendor advisory for mitigations.

References

https://github.com/mmaitre314/picklescan/security/advisories/GHSA-9xph-j2h6-g47v
https://www.vulncheck.com/advisories/picklescan-remote-code-execution-via-undetected-idlelib-calltip-get-entity
https://github.com/mmaitre314/picklescan/security/advisories/GHSA-9xph-j2h6-g47v

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