Read the docs
TI-2025-43469 Aliases CVE-2025-71349GHSA-3cjr-683m-5fxh

picklescan - Arbitrary Code Execution via Undetected trace.Trace.run in Pickle Files

Priority HIGH 66CWE-502Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

picklescan before 0.0.29 fails to detect the built-in trace.Trace.run function when analyzing pickle files, allowing attackers to embed undetected malicious code. Remote attackers can craft malicious pickle files using trace.Trace.run in the reduce method to achieve arbitrary code execution when pickle.load processes the file.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00613 49th percentileScored 2026-11-07
Fix Fixed picklescan (picklescan): 0.0.29

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

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 0.0.290.0.29Patch availableCNA
  • picklescan Vendorpicklescan Affected before 0.0.29 Fixed in 0.0.29 Patch available CNA

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 0.0.29

Fixed in the same release

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

  • Release ·

    picklescan 0.0.29

    4 records Highest priority Priority HIGH 4 HIGH

    Other records, highest priority first

    • TI-2025-43494 picklescan - Arbitrary Code Execution via Undetected profile.Profile.runPriority HIGH 68
    • TI-2025-43472 picklescan - Remote Code Execution via Undetected trace.Trace.runctx in Pickle FilesPriority HIGH 68
    • TI-2025-43491 picklescan - Remote Code Execution via code.InteractiveInterpreter Detection BypassPriority HIGH 66
    Show all 4 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-71349
  2. 2026-10-03 Alias added: GHSA-3cjr-683m-5fxh

References

Advisory 1

  • 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