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OpenAdvisories
High · 8.9 CVE-2026-22606 EUVD-2026-1688GHSA-wfq2-52f7-7qvjPYSEC-2026-1373

Fickling has a bypass via runpy.run_path() and runpy.run_module()

Published Jan 10, 2026 · Updated Jan 13, 2026 · Assigned by GitHub_M

Description

Fickling is a Python pickling decompiler and static analyzer. Fickling versions up to and including 0.1.6 do not treat Python’s runpy module as unsafe. Because of this, a malicious pickle that uses runpy.run_path() or runpy.run_module() is classified as SUSPICIOUS instead of OVERTLY_MALICIOUS. If a user relies on Fickling’s output to decide whether a pickle is safe to deserialize, this misclassification can lead them to execute attacker-controlled code on their system. This affects any workflow or product that uses Fickling as a security gate for pickle deserialization. This issue has been patched in version 0.1.7.

Affected products

VendorProductAffectedFixed
trailofbits fickling < 0.1.7 —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI fickling < 0.1.7 0.1.7 GHSA-wfq2-52f7-7qvj

References