CVE-2025-71355

Picklescan - Arbitrary Code Execution via Unsafe Numpy Function Detection Bypass

State: Published
Severity: 7.6 High
Published: Jun 30, 2026
Updated: Jul 1, 2026
Reserved: Jun 20, 2026

Description

Picklescan before 0.0.25 fails to detect unsafe global functions in the Numpy library, allowing attackers to bypass static analysis and execute arbitrary code during deserialization. Attackers can craft malicious pickle files using numpy.testing._private.utils.runstring within the reduce method to import dangerous libraries like os and execute arbitrary OS commands when the pickle file is loaded.

Scores

CVSS	Score	Vector	Source
4.0	7.6 High	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	VulnCheck

Weaknesses

CWE-184 Incomplete List of Disallowed Inputs

Affected Products

Product	Versions
PicklescanPicklescan	before 0.0.25Affected 0.0.25Not affected

References

GitHub Security Advisory (GHSA-fj43-3qmq-673f)vendor-advisory
VulnCheck Advisory: Picklescan - Arbitrary Code Execution via Unsafe Numpy Function Detection Bypassthird-party-advisory

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