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

Quick assessment

Affected
trailofbits fickling
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Fickling是Trail of Bits开源的一个Python的反编译器和静态分析器。 Fickling 0.1.7之前版本存在代码问题漏洞，该漏洞源于静态分析器未能标记高风险模块，可能导致绕过安全检查并执行任意代码。

AI Predicted 3.3 Difficulty: Easy EPSS 0.63% · P49
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I. Basic Information for CVE-2026-22609

Vulnerability Information
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Vulnerability Title
Fickling has Static Analysis Bypass via Incomplete Dangerous Module Blocklist
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
不完整的黑名单
Source: CVE Program / CVE List V5
Vulnerability Title
Fickling 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fickling是Trail of Bits开源的一个Python的反编译器和静态分析器。 Fickling 0.1.7之前版本存在代码问题漏洞，该漏洞源于静态分析器未能标记高风险模块，可能导致绕过安全检查并执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
trailofbits fickling < 0.1.7 -

II. Public POCs for CVE-2026-22609

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III. Intelligence Information for CVE-2026-22609

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Same Patch Batch · trailofbits · 2026-01-10 · 5 CVEs total

CVE-2026-22607 Fickling Blocklist Bypass: cProfile.run()
CVE-2026-22612 Fickling vulnerable to detection bypass due to "builtins" blindness
CVE-2026-22608 Fickling vulnerable to use of ctypes and pydoc gadget chain to bypass detection
CVE-2026-22606 Fickling has a bypass via runpy.run_path() and runpy.run_module()

IV. Related Vulnerabilities

Same product: fickling
Same vendor: trailofbits
Same weakness: CWE-184

V. Comments for CVE-2026-22609

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