CVE-2026-22608
Fickling vulnerable to use of ctypes and pydoc gadget chain to bypass detection
HIGH 8.9EPSS 0.4%
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.
- Affected
- trailofbits · fickling
- CVSS v4.0 GITHUB
- 8.9 HIGH
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS v4.0 GitHub
- 8.9 HIGH
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 - CVSS v3.1 NVD
- 7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - EPSS
- 0.39% chance of exploitation in the next 30 days, 32nd percentile
- Published
- 2026-01-10
- Updated
- 2026-01-13
Proof-of-concept exploits (1)
Security advisories
- trailofbits/fickling/security/advisories/GHSA-5hvc-6wx8-mvv4
- trailofbits/fickling/commit/b793563e60a5e039c5837b09d7f4f6b92e6040d1