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.
References
https://github.com/trailofbits/fickling/security/advisories/GHSA-wfq2-52f7-7qvj
https://github.com/trailofbits/fickling/security/advisories/GHSA-wfq2-52f7-7qvj
CVSS impact metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8 · High
Information
Source identifier
Vulnerability status
Analyzed
Published
2026-01-10T02:15:49.637Z
6 days agoLast modified
2026-01-16T18:59:35.140Z
2 hours ago