CVE-2025-71359

HIGH SEVERITY

CVSS Score & Metrics

Base Score

8.1 / 10

Vector String

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

Vulnerability Description

picklescan before 0.0.29 fails to detect malicious pickle payloads that utilize lib2to3.pgen2.grammar.Grammar.loads in the reduce method, allowing remote code execution. Attackers can craft pickle files embedding dangerous code that evades picklescan detection and executes during pickle.load() deserialization.

Vulnerability Details

Published Date

July 04, 2026

Last Modified

July 04, 2026

CWE ID

CWE-502

Source

NVD

Vendor

picklescan

Product

picklescan

External References

https://github.com/mmaitre314/picklescan/security/advisories/GHSA-f54q-57x4-jg88
https://www.vulncheck.com/advisories/picklescan-unsafe-deserialization-via-lib2to3-pgen2-grammar-grammar-loads

CVE-2025-71359

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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