CVE-2025-67748

Summary

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 Software

VendorProductVersion RangeStatus
trailofbitsfickling< 0.1.6affected

Weaknesses

  • CWE-184: CWE-184: Incomplete List of Disallowed Inputs
  • CWE-502: CWE-502: Deserialization of Untrusted Data
  • CWE-94: CWE-94: Improper Control of Generation of Code ('Code Injection')

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: total

References