CVE-2026-22607

HIGH EPSS 35.2%
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. Fickling versions up to and including 0.1.6 do not treat Python's cProfile module as unsafe. Because of this, a malicious pickle that uses cProfile.run() is classified as SUSPICIOUS instead of OVERTLY_MALICIOUS. If a user relies on Fickling's output to decide whether a pickle is safe to deserialize, this misclassification can lead them to execute attacker-controlled code on their system. This affects any workflow or product that uses Fickling as a security gate for pickle deserialization. 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
35.2% 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 3

  • github.com https://github.com/trailofbits/fickling/commit/dc8ae12966edee27a78fe05c5745171a2b138d43
    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-p523-jq9w-64x9
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/trailofbits/fickling/commit/dc8ae12966edee27a78fe05c5745171a2b138d43
    Patch