{"id":"CVE-2025-71351","title":"picklescan before 0.0.25 fails to detect malicious pickle files that use timeit.timeit() in the __reduce__ method, allowing remote code execution","summary":"picklescan before 0.0.25 fails to detect malicious pickle files that use timeit.timeit() in the __reduce__ method, allowing remote code execution. Attackers can craft pickle files that import dangerous libraries like os and execute arbit…","severity":"medium","cwe":["CWE-184"],"vendor":"picklescan","product":"picklescan","affected":["picklescan < 0.0.25"],"patched":["picklescan 0.0.25"],"published":"2026-06-21","updated":"2026-10-12","sourceUpdated":"2026-10-12T22:10:00.247","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-71351","references":[{"url":"https://github.com/mmaitre314/picklescan/security/advisories/GHSA-v7x6-rv5q-mhwc","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/picklescan-remote-code-execution-via-timeit-timeit-detection-bypass","label":"disclosure@vulncheck.com"},{"url":"https://github.com/mmaitre314/picklescan/security/advisories/GHSA-v7x6-rv5q-mhwc","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-71351"},{"url":"https://github.com/mmaitre314/picklescan/pull/40"},{"url":"https://github.com/mmaitre314/picklescan"},{"url":"https://github.com/mmaitre314/picklescan/releases/tag/v0.0.25"},{"url":"https://github.com/advisories/GHSA-v7x6-rv5q-mhwc"},{"url":"https://pypi.org/project/picklescan"}],"tags":["nvd","osv","pip","ghsa"],"epss":0.00552,"epssPercentile":0.45966,"aliases":["GHSA-v7x6-rv5q-mhwc","PYSEC-2026-4135"],"ecosystem":"pip","ingestedAt":"2026-07-08T18:25:53.268Z","slug":"CVE-2025-71351","body":"## Overview\n\npicklescan before 0.0.25 fails to detect malicious pickle files that use timeit.timeit() in the __reduce__ method, allowing remote code execution. Attackers can craft pickle files that import dangerous libraries like os and execute arbitrary system commands, which evade picklescan detection and execute when pickle.load() is called.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2025-71351)\n\nAffected packages:\n\n- `picklescan < 0.0.25`\n\nPatched in:\n\n- `picklescan 0.0.25`\n\nSource: https://osv.dev/vulnerability/GHSA-v7x6-rv5q-mhwc","depth":"sunlit","depthScore":28,"depthScoreParts":{"impact":27.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}