CVE-2026-22608

Fickling vulnerable to use of ctypes and pydoc gadget chain to bypass detection

State: Published
Severity: 8.9 High
Published: Jan 10, 2026
Updated: Jan 13, 2026
Reserved: Jan 7, 2026

Description

Fickling is a Python pickling decompiler and static analyzer. Prior to version 0.1.7, both ctypes and pydoc modules aren't explicitly blocked. Even other existing pickle scanning tools (like picklescan) do not block pydoc.locate. Chaining these two together can achieve RCE while the scanner still reports the file as LIKELY_SAFE. This issue has been patched in version 0.1.7.

Scores

CVSS	Score	Vector	Source
4.0	8.9 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P	GitHub_M

Weaknesses

CWE-184 Incomplete List of Disallowed Inputs
CWE-502 Deserialization of Untrusted Data

Affected Products

Product	Versions
ficklingtrailofbits	< 0.1.7Affected

References

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