CVE-2025-67748
Published:December 16, 2025
Updated:May 16, 2026
Fickling is a Python pickling decompiler and static analyzer. Versions prior to 0.1.6 had a bypass caused by "pty" missing from the block list of unsafe module imports. This led to unsafe pickles based on "pty.spawn()" being incorrectly flagged as "LIKELY_SAFE", and was fixed in version 0.1.6. This impacted any user or system that used Fickling to vet pickle files for security issues.
Affected Packages
https://github.com/trailofbits/fickling.git (GITHUB):
Affected version(s) >=v0.0.1 <v0.1.6Fix Suggestion:
Update to version v0.1.6fickling (PYTHON):
Affected version(s) >=0.0.1 <0.1.6Fix Suggestion:
Update to version 0.1.6Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.5
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
POC
CVSS v3
Base Score:
7.8
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
EPSS
Base Score:
0.03