Detection Bypass Vulnerability in Fickling Python Decompiler by Trail of Bits
CVE-2026-22612

8.9HIGH

Key Information:

Vendor

Trailofbits

Status
Fickling
Vendor
CVE Published:
10 January 2026

What is CVE-2026-22612?

Fickling, a Python pickling decompiler and static analyzer, is susceptible to a detection bypass vulnerability due to limitations in its handling of built-in types. This flaw allows malicious actors to obfuscate their payloads, effectively rendering traditional detection mechanisms ineffective. The vulnerability has been resolved in version 0.1.7, which includes necessary patches to bolster the security of its analysis capabilities.

Affected Version(s)

fickling < 0.1.7

References

https://github.com/trailofbits/fickling/security/advisori...
x_refsource_CONFIRM
https://github.com/trailofbits/fickling/commit/9f309ab834...
x_refsource_MISC
https://github.com/trailofbits/fickling/releases/tag/v0.1.7
x_refsource_MISC

CVSS V4

Score:
8.9
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.