CVE-2026-22608

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

Published Jan 10, 2026 CVSS 4.0 · 8.9 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Github GHSA Github GHSA GHSA-5hvc-6wx8-mvv4 Fickling vulnerable to use of ctypes and pydoc gadget chain to bypass detection
History
Type Values Removed Values Added
CPEs cpe:2.3:a:trailofbits:fickling:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Trailofbits
Trailofbits fickling
Vendors & Products Trailofbits
Trailofbits fickling
Type Values Removed Values Added
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.
Title Fickling vulnerable to use of ctypes and pydoc gadget chain to bypass detection
Weaknesses CWE-184
CWE-502
References
Metrics cvssV4_0

{'score': 8.9, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jan 13, 2026, 7:57 PM
Reserved
Jan 7, 2026, 9:50 PM
Status
Analyzed
Published
Jan 10, 2026, 2:15 AM
Modified
Jun 17, 2026, 10:20 AM