{"id":"CVE-2025-71339","title":"Picklescan before 0.0.33 fails to detect the numpy.f2py.crackfortran._eval_length gadget in pickle __reduce__ methods, allowing arbitrary code execution","summary":"Picklescan before 0.0.33 fails to detect the numpy.f2py.crackfortran._eval_length gadget in pickle __reduce__ methods, allowing arbitrary code execution. Attackers can craft malicious pickle files that execute arbitrary Python code when …","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","cwe":["CWE-502"],"vendor":"picklescan","product":"picklescan","affected":["picklescan < 0.0.33"],"patched":["picklescan 0.0.33"],"published":"2026-06-22","updated":"2026-10-12","sourceUpdated":"2026-10-12T22:10:00.247","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-71339","references":[{"url":"https://github.com/mmaitre314/picklescan/security/advisories/GHSA-6556-fwc2-fg2p","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-numpy-f2py-crackfortran-eval-length-gadget","label":"disclosure@vulncheck.com"},{"url":"https://github.com/mmaitre314/picklescan/security/advisories/GHSA-6556-fwc2-fg2p","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://github.com/mmaitre314/picklescan/pull/53"},{"url":"https://github.com/mmaitre314/picklescan/commit/70c1c6c31beb6baaf52c8db1b6c3c0e84a6f9dab"},{"url":"https://github.com/mmaitre314/picklescan"},{"url":"https://github.com/mmaitre314/picklescan/releases/tag/v0.0.33"}],"tags":["nvd","osv","pip"],"epss":0.00381,"epssPercentile":0.31966,"aliases":["GHSA-6556-fwc2-fg2p","PYSEC-2026-1783"],"ecosystem":"pip","ingestedAt":"2026-07-08T18:25:46.286Z","slug":"CVE-2025-71339","body":"## Overview\n\nPicklescan before 0.0.33 fails to detect the numpy.f2py.crackfortran._eval_length gadget in pickle __reduce__ methods, allowing arbitrary code execution. Attackers can craft malicious pickle files that execute arbitrary Python code when loaded by victims who trust Picklescan's safety validation.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2025-71339)\n\nAffected packages:\n\n- `picklescan < 0.0.33`\n\nPatched in:\n\n- `picklescan 0.0.33`\n\nSource: https://osv.dev/vulnerability/GHSA-6556-fwc2-fg2p","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":213771,"id":"CVE-2025-71339","ts":1790788483592,"field":"cvss","old":null,"new":"8.1"},{"seq":213770,"id":"CVE-2025-71339","ts":1790788483592,"field":"severity","old":"medium","new":"high"}]}