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CVE-2026-3490— picklescan - Universal Blocklist Bypass via pkgutil.resolve_name

Quick assessment

Affected
picklescan picklescan
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Picklescan是美国Matthieu Maitre个人开发者的一款扫描Pickle文件安全风险的静态分析工具。 Matthieu Maitre Picklescan 1.0.4之前版本存在输入验证错误漏洞，该漏洞源于未正确阻止pkgutil.resolve_name，允许攻击者通过间接REDUCE调用解析任意危险函数，从而绕过整个黑名单，可能导致远程攻击者调用任意阻止函数如os.system、builtins.exec或subprocess.call实现远程代码执行。

CVSS 10.0 · Critical EPSS 0.91% · P58

Affected Version Matrix 2

VendorProduct Version RangeStatus
picklescan picklescan < 1.0.4 affected
1.0.4 unaffected
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I. Basic Information for CVE-2026-3490

Vulnerability Information
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Vulnerability Title
picklescan - Universal Blocklist Bypass via pkgutil.resolve_name
Source: CVE Program / CVE List V5
Vulnerability Description
picklescan before 1.0.4 fails to block pkgutil.resolve_name, allowing attackers to bypass the entire blocklist by resolving any dangerous function through indirect REDUCE calls. Remote attackers can invoke any blocked function such as os.system, builtins.exec, or subprocess.call to achieve remote code execution.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
宽松定义的白名单
Source: CVE Program / CVE List V5
Vulnerability Title
Matthieu Maitre Picklescan 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Picklescan是美国Matthieu Maitre个人开发者的一款扫描Pickle文件安全风险的静态分析工具。 Matthieu Maitre Picklescan 1.0.4之前版本存在输入验证错误漏洞，该漏洞源于未正确阻止pkgutil.resolve_name，允许攻击者通过间接REDUCE调用解析任意危险函数，从而绕过整个黑名单，可能导致远程攻击者调用任意阻止函数如os.system、builtins.exec或subprocess.call实现远程代码执行。
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
picklescan picklescan 0 ~ 1.0.4 -

II. Public POCs for CVE-2026-3490

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 6754 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-3490

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Vendor Advisories for CVE-2026-3490 (1)

News Coverage for CVE-2026-3490 (1)

Same Patch Batch · picklescan · 2026-06-17 · 10 CVEs total

CVE-2026-53874 9.8 CRITICAL picklescan - Arbitrary Code Execution via Obfuscated eval Call
CVE-2026-53873 9.8 CRITICAL picklescan - Arbitrary Code Execution via profile.run() Blocklist Bypass
CVE-2025-71325 9.8 CRITICAL picklescan - Detection Bypass via STACK_GLOBAL Opcode Parsing Logic Flaw
CVE-2025-71323 9.8 CRITICAL picklescan - Remote Code Execution via Unblocked ctypes Module
CVE-2025-71321 9.8 CRITICAL picklescan - Arbitrary File Writing via distutils Module Bypass
CVE-2025-71320 9.8 CRITICAL picklescan - Remote Code Execution via Incomplete Disallowed Inputs
CVE-2025-71322 8.8 HIGH PickleScan - Unsafe Globals Check Bypass via pty.spawn Function
CVE-2026-53872 7.5 HIGH picklescan - Arbitrary File Read via Unsafe Pickle Deserialization
CVE-2026-53875 picklescan - Scanning Bypass via Dynamic Eval in scan_pytorch

IV. Related Vulnerabilities

Same product: picklescan
Same vendor: picklescan
Same weakness: CWE-183

V. Comments for CVE-2026-3490

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