CVE-2026-22609Fickling has Static Analysis Bypass via Incomplete Dangerous Module Blocklist

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.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

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