CVE-2025-71359

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.

References

https://www.vulncheck.com/advisories/picklescan-unsafe-deserialization-via-lib2to3-pgen2-grammar-grammar-loads

https://github.com/mmaitre314/picklescan/security/advisories/GHSA-f54q-57x4-jg88

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3