CVE Catalog

CVE-2025-71343

HighCVSS 8.1
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.30%

22th percentile - higher than 22% of all known CVEs

Summary

The vulnerability in picklescan before version 0.0.30 fails to detect malicious pickle files that exploit the lib2to3.pgen2.pgen.ParserGenerator.make_label function in the reduce method. Attackers can craft malicious pickle files with embedded code that evades detection but executes arbitrary commands when pickle.load() is called.

Risk Assessment

The risk involves remote code execution (RCE) by an attacker who delivers a crafted pickle file to the system, potentially leading to full compromise of the application or server.

Recommendation

It is recommended to immediately upgrade picklescan to version 0.0.30 or later, which includes a fix to detect such malicious files.

Other vulnerabilities in picklescan

See all
Original NVD description (English source)

picklescan before 0.0.30 fails to detect malicious pickle files that exploit lib2to3.pgen2.pgen.ParserGenerator.make_label function in the reduce method. Attackers can craft malicious pickle files with embedded code that evades detection but executes arbitrary commands when pickle.load() is called.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS