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CVE-2025-71321— picklescan - Arbitrary File Writing via distutils Module Bypass

CVSS 9.8 · Critical EPSS 0.62% · P47

Affected Version Matrix 2

VendorProductVersion RangeStatus
picklescanpicklescan< 0.0.33affected
0.0.33unaffected
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I. Basic Information for CVE-2025-71321

Vulnerability Information
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Vulnerability Title
picklescan - Arbitrary File Writing via distutils Module Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
picklescan before 0.0.33 contains an arbitrary file writing vulnerability that allows attackers to bypass the dangerous blocklist by using distutils.file_util.write_file. Attackers can construct malicious pickle objects to overwrite critical system files and achieve denial of service or remote code execution.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
Matthieu Maitre Picklescan 反序列化漏洞
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 0.0.33之前版本存在反序列化漏洞，该漏洞源于通过distutils.file_util.write_file绕过危险黑名单，允许攻击者构建恶意pickle对象覆盖关键系统文件，导致拒绝服务或远程代码执行。
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

VendorProductAffected VersionsCPESubscribe
picklescanpicklescan 0 ~ 0.0.33 -

II. Public POCs for CVE-2025-71321

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 11188 chars
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III. Intelligence Information for CVE-2025-71321

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Vendor Advisories for CVE-2025-71321 (2)

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

CVE-2026-349010.0 CRITICALpicklescan - Universal Blocklist Bypass via pkgutil.resolve_name
CVE-2026-538749.8 CRITICALpicklescan - Arbitrary Code Execution via Obfuscated eval Call
CVE-2026-538739.8 CRITICALpicklescan - Arbitrary Code Execution via profile.run() Blocklist Bypass
CVE-2025-713259.8 CRITICALpicklescan - Detection Bypass via STACK_GLOBAL Opcode Parsing Logic Flaw
CVE-2025-713239.8 CRITICALpicklescan - Remote Code Execution via Unblocked ctypes Module
CVE-2025-713209.8 CRITICALpicklescan - Remote Code Execution via Incomplete Disallowed Inputs
CVE-2025-713228.8 HIGHPickleScan - Unsafe Globals Check Bypass via pty.spawn Function
CVE-2026-538727.5 HIGHpicklescan - Arbitrary File Read via Unsafe Pickle Deserialization
CVE-2026-53875picklescan - Scanning Bypass via Dynamic Eval in scan_pytorch

IV. Related Vulnerabilities

Same product: picklescan
Same vendor: picklescan
Same weakness: CWE-502

V. Comments for CVE-2025-71321

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