CVE-2026-22609

HIGH EPSS 42.1%
Published Jan 10, 20265mo ago · Modified Jun 17, 20262w ago
8.9 CVSS 4.0
High
Find Similar
Published Jan 10, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago

Description

Fickling is a Python pickling decompiler and static analyzer. Prior to version 0.1.7, the unsafe_imports() method in Fickling's static analyzer fails to flag several high-risk Python modules that can be used for arbitrary code execution. Malicious pickles importing these modules will not be detected as unsafe, allowing attackers to bypass Fickling's primary static safety checks. This issue has been patched in version 0.1.7.

CVSS Details

Base Score
8.9
Exploitability
—
Impact
—
Vector string
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
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
42.1% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-184
CWE-502 Deserialization of Untrusted Data Validation

Affected Products 1

VendorProductVersionRange
trailofbitsfickling* <0.1.7

References 6

  • github.com https://github.com/trailofbits/fickling/commit/29d5545e74b07766892c1f0461b801afccee4f91
    Patch
  • github.com https://github.com/trailofbits/fickling/commit/9a2b3f89bd0598b528d62c10a64c1986fcb09f66
    Patch
  • github.com https://github.com/trailofbits/fickling/commit/b793563e60a5e039c5837b09d7f4f6b92e6040d1
    Patch
  • github.com https://github.com/trailofbits/fickling/commit/eb299b453342f1931c787bcb3bc33f3a03a173f9
    Patch
  • github.com https://github.com/trailofbits/fickling/releases/tag/v0.1.7
    Release Notes
  • github.com https://github.com/trailofbits/fickling/security/advisories/GHSA-q5qq-mvfm-j35x
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/trailofbits/fickling/commit/29d5545e74b07766892c1f0461b801afccee4f91
    Patch
  • github.com https://github.com/trailofbits/fickling/commit/9a2b3f89bd0598b528d62c10a64c1986fcb09f66
    Patch
  • github.com https://github.com/trailofbits/fickling/commit/b793563e60a5e039c5837b09d7f4f6b92e6040d1
    Patch
  • github.com https://github.com/trailofbits/fickling/commit/eb299b453342f1931c787bcb3bc33f3a03a173f9
    Patch