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CVE-2025-71359— picklescan - Unsafe Deserialization via lib2to3.pgen2.grammar.Grammar.loads

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 0.0.29之前版本存在反序列化注入漏洞，该漏洞源于使用lib2to3.pgen2.grammar.Grammar.loads方法时未能检测恶意pickle有效载荷，导致远程代码执行。

CVSS 8.1 · High EPSS 0.61% · P47

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 2

VendorProduct Version RangeStatus
picklescan picklescan < 0.0.29 affected
0.0.29 unaffected
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I. Basic Information for CVE-2025-71359

Vulnerability Information
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Vulnerability Title
picklescan - Unsafe Deserialization via lib2to3.pgen2.grammar.Grammar.loads
Source: CVE Program / CVE List V5
Vulnerability Description
picklescan before 0.0.29 fails to detect malicious pickle payloads that utilize lib2to3.pgen2.grammar.Grammar.loads in the reduce method, allowing remote code execution. Attackers can craft pickle files embedding dangerous code that evades picklescan detection and executes during pickle.load() deserialization.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
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 反序列化注入漏洞
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 0.0.29之前版本存在反序列化注入漏洞，该漏洞源于使用lib2to3.pgen2.grammar.Grammar.loads方法时未能检测恶意pickle有效载荷，导致远程代码执行。
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 ~ 0.0.29 -

II. Public POCs for CVE-2025-71359

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 10990 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-2025-71359

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Vendor Advisories for CVE-2025-71359 (2)

Same Patch Batch · picklescan · 2026-07-04 · 16 CVEs total

CVE-2025-71356 8.1 HIGH picklescan - Arbitrary Code Execution via torch.fx.experimental.symbolic_shapes.ShapeEnv.e
CVE-2025-71372 8.1 HIGH Picklescan - Arbitrary Code Execution via numpy.f2py.crackfortran.getlincoef Gadget
CVE-2025-71367 8.1 HIGH picklescan - Remote Code Execution via _operator.attrgetter Detection Bypass
CVE-2025-71347 8.1 HIGH picklescan - Undetected Remote Code Execution via numpy.f2py.crackfortran.param_eval
CVE-2025-71366 8.1 HIGH picklescan - Arbitrary Code Execution via torch.utils.bottleneck.__main__.run_cprofile
CVE-2025-71369 8.1 HIGH picklescan - Unsafe Deserialization via torch.utils.data.datapipes.utils.decoder.basichand
CVE-2025-71373 8.1 HIGH picklescan - Remote Code Execution via operator.methodcaller Detection Bypass
CVE-2025-71362 8.1 HIGH picklescan - Arbitrary Code Execution via Unsafe Deserialization in numpy.f2py.crackfortra
CVE-2025-71375 8.1 HIGH picklescan - Undetected Remote Code Execution via _operator.methodcaller
CVE-2025-71360 8.1 HIGH picklescan - Remote Code Execution via Undetected idlelib.calltip.get_entity
CVE-2025-71364 8.1 HIGH picklescan - Arbitrary Code Execution via Undetected asyncio.unix_events._UnixSubprocessTr
CVE-2025-71342 8.1 HIGH picklescan - Undetected Remote Code Execution via idlelib.run.Executive.runcode
CVE-2025-71353 8.1 HIGH picklescan - Remote Code Execution via torch._dynamo.guards.GuardBuilder.get
CVE-2025-71343 8.1 HIGH picklescan - Arbitrary Code Execution via lib2to3.pgen2.pgen.ParserGenerator.make_label De
CVE-2025-71345 8.1 HIGH picklescan - Arbitrary Code Execution via torch.utils.bottleneck.__main__.run_autograd_pro

IV. Related Vulnerabilities

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

V. Comments for CVE-2025-71359

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