CVE-2025-71339CWE-502insecure-deserialization

CVE-2025-71339

High · published June 23, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
30.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00381 · 30.9th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-06-23T02:16Z
References (3)
https://github.com/mmaitre314/picklescan/security/advisories/GHSA-6556-fwc2-fg2p · [email protected]https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-numpy-f2py-crackfortran-eval-length-gadget · [email protected]https://github.com/mmaitre314/picklescan/security/advisories/GHSA-6556-fwc2-fg2p · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 22 JUN 21:04Z
    Picklescan - Arbitrary Code Execution via numpy.f2py.crackfortran._eval_length Gadget
    cvelistv5