CVE-2025-71365 | picklescan before 0.0.33 fails to detect malicious pickle fi… | CVSS 8.1 HIGH

Description

picklescan before 0.0.33 fails to detect malicious pickle files that invoke numpy.f2py.crackfortran.myeval function through the reduce method. Attackers can craft malicious pickle files embedding arbitrary code that evades picklescan detection and executes remote code when loaded.

Metadata

CVE ID: CVE-2025-71365
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-06-20 13:01 UTC
Published: 2026-06-23 12:12 UTC
Last updated: 2026-06-23 14:32 UTC
Primary CWE: CWE-502
Deserialization of Untrusted Data
Vendor / Product: picklescan / picklescan
Sources: cve.org · NVD

Severity & Metrics

8.1 HIGH CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: no
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
picklescan	picklescan	—	0 < 0.0.33, 0.0.33

Weakness (CWE)

CWE	Source	Description
CWE-502	cna	Deserialization of Untrusted Data

CVSS scores (2)

Score	Severity	Version	Source	Vector
8.1	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
7.6	HIGH	4.0	cna	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

References (2)

GitHub Security Advisory (GHSA-3329-ghmp-jmv5) https://github.com/mmaitre314/picklescan/security/advisories/GHSA-3329-ghmp-jmv5
VulnCheck Advisory: picklescan - Arbitrary Code Execution via numpy.f2py.crackfortran.myeval Detection Bypass https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-numpy-f2py-crackfortran-myeval-detection-bypass