CVE-2025-71339

HIGH 8.1

Picklescan - Arbitrary Code Execution via numpy.f2py.crackfortran._eval_length Gadget

CVSS Score

8.1

EPSS Score

0.0%

EPSS Percentile

0th

Picklescan before 0.0.33 fails to detect the numpy.f2py.crackfortran._eval_length gadget in pickle __reduce__ methods, allowing arbitrary code execution. Attackers can craft malicious pickle files that execute arbitrary Python code when loaded by victims who trust Picklescan's safety validation.

CWE	CWE-502
Vendor	picklescan
Product	picklescan
Published	Jun 22, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Affected Versions

Picklescan / Picklescan

0 < 0.0.33

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/mmaitre314/picklescan/security/advisories/GHSA-6556-fwc2-fg2p vulncheck.com: https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-numpy-f2py-crackfortran-eval-length-gadget

Credits

🔍 ac0d3r 🔍 Lyutoon