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OpenAdvisories
High · 8.1 CVE-2025-71349 EUVD-2025-210385GHSA-3cjr-683m-5fxhGHSA-5qwp-399c-mjwf

picklescan - Arbitrary Code Execution via Undetected trace.Trace.run in Pickle Files

Published Jun 30, 2026 · Updated Jul 1, 2026 · Assigned by VulnCheck

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.

Affected products

VendorProductAffectedFixed
picklescan picklescan < 0.0.29 0.0.29

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI picklescan < 0.0.29 0.0.29 GHSA-5qwp-399c-mjwf

References