CVE-2025-71349

High

Description

picklescan before 0.0.29 fails to detect the built-in trace.Trace.run function when analyzing pickle files, allowing attackers to embed undetected malicious code. Remote attackers can craft malicious pickle files using trace.Trace.run in the reduce method to achieve arbitrary code execution when pickle.load processes the file.

SeverityHigh

CVSS8.1

Exploit probability—

ProductPicklescan

PublishedJun 30, 2026

First seenJun 30, 2026

Weakness typeCWE-502Deserialization of untrusted data

How to fix

Update

picklescan0.0.29 or later

Vendor advisories

github.com/mmaitre314/picklescan/security/advisories/GHSA-5qwp-399c-mjwf

Affected products

Product	Affected versions	Fixed in
picklescanPyPI	v < 0.0.29	0.0.29

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