CVE-2025-71359

highCVSS 8.1covered by 1 sourcefirst seen 2026-07-04

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.

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Exploitation outlook

Low exploitation risk0.43% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 35% of all EPSS-scored CVEs.

Advisory coverage (1)

highCVE-2025-71359: picklescan before 0.0.29 fails to detect malicious pickle payloads that utilize lib2to3.pgen2.…nvd · 2026-07-04

External references

NVD record for CVE-2025-71359

CVE.org record

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