Fickling has Code Injection vulnerability via pty.spawn()_CVE-2025-67748

7.1 / 10

HIGH

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

Description

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.

Basic Information

ID CVE-2025-67748

Source GitHub_M

Published Dec 16, 2025 at 00:39

Affected Product

Vendor trailofbits

Product fickling

Version < 0.1.6

Affected Versions trailofbits fickling < 0.1.6

CWE Classification

CWE-184 CWE-502 CWE-94

References

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    "published": "2025-12-16T00:39:13.968Z",
    "modified": "2025-12-16T00:39:13.968Z",
    "type": "cve",
    "title": "Fickling has Code Injection vulnerability via pty.spawn()",
    "source": "GitHub_M",
    "references": "https://github.com/trailofbits/fickling/security/advisories/GHSA-r7v6-mfhq-g3m2\nhttps://github.com/trailofbits/fickling/pull/108\nhttps://github.com/trailofbits/fickling/pull/187",
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