CVE-2026-22608 HIGH

CVE-2026-22608: Fickling vulnerable to use of ctypes and pydoc gadget chain to bypass detection

Vendor Trailofbits
Product fickling
Weakness CWE-184
Published January 10, 2026
Last update January 13, 2026
View on NVD All CVEs

CVSS base score

8.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

January 10, 2026 CVE published
January 13, 2026 Record updated