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TI-2025-43441 Aliases CVE-2025-71320GHSA-84r2-jw7c-4r5q

picklescan - Remote Code Execution via Incomplete Disallowed Inputs

Priority HIGH 81CWE-184Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub.

Summary

picklescan before 0.0.33 contains an incomplete deny-list that fails to block pydoc.locate and operator.methodcaller functions, allowing attackers to bypass security checks. Remote attackers can craft malicious pickle files using these unblocked functions to achieve arbitrary code execution when the pickle is deserialized.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00823 57th percentileScored 2026-11-07
Fix Fixed picklescan (picklescan): 0.0.33picklescan (PyPI): 0.0.33

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
picklescanpicklescanbefore 0.0.330.0.33Patch availableCNA
—picklescan (PyPI)before 0.0.330.0.33Patch availableGHSA-84r2-jw7c-4r5q
  • picklescan Vendorpicklescan Affected before 0.0.33 Fixed in 0.0.33 Patch available CNA
  • picklescan (PyPI) Vendor— Affected before 0.0.33 Fixed in 0.0.33 Patch available GHSA-84r2-jw7c-4r5q

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:mmaitre314:picklescan:*:*:*:*:*:*:*:*——picklescan
  • cpe:2.3:a:mmaitre314:picklescan:*:*:*:*:*:*:*:* Versions — — ·picklescan

Remediation

  • Fix · CNA picklescan (picklescan) Fixed in 0.0.33
  • Fix · GHSA-84r2-jw7c-4r5q picklescan (PyPI) Fixed in 0.0.33 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    picklescan 0.0.33

    4 records Highest priority Priority HIGH 3 HIGH, 1 MEDIUM

    Other records, highest priority first

    • TI-2025-43444 picklescan - Remote Code Execution via Unblocked ctypes ModulePriority HIGH 81
    • TI-2025-43442 picklescan - Arbitrary File Writing via distutils Module BypassPriority HIGH 81
    • TI-2025-43443 PickleScan - Unsafe Globals Check Bypass via pty.spawn FunctionPriority MEDIUM 40
    Show all 4 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-71320
  2. 2026-10-03 Alias added: GHSA-84r2-jw7c-4r5q

References

Advisory 2

Other 4

  • TI-2026-03009 picklescan - Universal Blocklist Bypass via pkgutil.resolve_name CVSS 4.0CRITICAL 10.0
  • TI-2026-40680 picklescan - Remote Code Execution via Unblocked Standard Library Modules CVSS 4.0CRITICAL 9.3
  • TI-2026-38870 picklescan - Arbitrary Code Execution via Obfuscated eval Call CVSS 4.0CRITICAL 9.3
  • TI-2026-38869 picklescan - Arbitrary Code Execution via profile.run() Blocklist Bypass CVSS 4.0CRITICAL 9.3
  • TI-2025-43446 picklescan - Detection Bypass via STACK_GLOBAL Opcode Parsing Logic Flaw CVSS 4.0CRITICAL 9.3
  • TI-2025-43444 picklescan - Remote Code Execution via Unblocked ctypes Module CVSS 4.0CRITICAL 9.3
See all 57 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences