CVE-2025-71351

picklescan - Remote Code Execution via timeit.timeit() Detection Bypass

Published Jun 21, 2026 CVSS 4.0 · 7.6 High EPSS < 1% KEV · Not listed
Description
picklescan before 0.0.25 fails to detect malicious pickle files that use timeit.timeit() in the __reduce__ method, allowing remote code execution. Attackers can craft pickle files that import dangerous libraries like os and execute arbitrary system commands, which evade picklescan detection and execute when pickle.load() is called.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-v7x6-rv5q-mhwc Picklescan missing detection when calling built-in python library function timeit.timeit()
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Picklescan
Picklescan picklescan
Vendors & Products Picklescan
Picklescan picklescan
Type Values Removed Values Added
Description picklescan before 0.0.25 fails to detect malicious pickle files that use timeit.timeit() in the __reduce__ method, allowing remote code execution. Attackers can craft pickle files that import dangerous libraries like os and execute arbitrary system commands, which evade picklescan detection and execute when pickle.load() is called.
Title picklescan - Remote Code Execution via timeit.timeit() Detection Bypass
First Time appeared Mmaitre314
Mmaitre314 picklescan
Weaknesses CWE-184
CPEs cpe:2.3:a:mmaitre314:picklescan:*:*:*:*:*:*:*:*
Vendors & Products Mmaitre314
Mmaitre314 picklescan
References
Metrics cvssV4_0

{'score': 7.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 8, 2026, 2:00 PM
Reserved
Jun 20, 2026, 12:48 PM
Status
Deferred
Published
Jun 21, 2026, 2:16 PM
Modified
Oct 12, 2026, 10:10 PM