CVE-2025-67748

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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/trailofbits/fickling/pull/108	Issue Tracking Patch
https://github.com/trailofbits/fickling/pull/187	Issue Tracking Patch
https://github.com/trailofbits/fickling/security/advisories/GHSA-r7v6-mfhq-g3m2	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:trailofbits:fickling:*:*:*:*:*:*:*:*

History

02 Jan 2026, 15:58

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.8
CPE		cpe:2.3:a:trailofbits:fickling::::::::
First Time		Trailofbits Trailofbits fickling
References	~~() https://github.com/trailofbits/fickling/pull/108 -~~	() https://github.com/trailofbits/fickling/pull/108 - Issue Tracking, Patch
References	~~() https://github.com/trailofbits/fickling/pull/187 -~~	() https://github.com/trailofbits/fickling/pull/187 - Issue Tracking, Patch
References	~~() https://github.com/trailofbits/fickling/security/advisories/GHSA-r7v6-mfhq-g3m2 -~~	() https://github.com/trailofbits/fickling/security/advisories/GHSA-r7v6-mfhq-g3m2 - Exploit, Vendor Advisory

16 Dec 2025, 01:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-12-16 01:15

Updated : 2026-01-02 15:58

NVD link : CVE-2025-67748

Mitre link : CVE-2025-67748

CVE.ORG link : CVE-2025-67748

JSON object : View

Products Affected

trailofbits

fickling

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

CWE-184

Incomplete List of Disallowed Inputs

CWE-502

Deserialization of Untrusted Data

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