{"id":"CVE-2025-71349","title":"picklescan before 0.0.29 fails to detect the built-in trace.Trace.run function when analyzing pickle files, allowing attackers to embed undetected malicious code","summary":"picklescan before 0.0.29 fails to detect the built-in trace.Trace.run function when analyzing pickle files, allowing attackers to embed undetected malicious code. Remote attackers can craft malicious pickle files using trace.Trace.run in…","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 < 0.0.29"],"patched":["picklescan 0.0.29"],"published":"2026-06-30","updated":"2026-10-12","sourceUpdated":"2026-10-12T21:10:00.227","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-71349","references":[{"url":"https://github.com/mmaitre314/picklescan/security/advisories/GHSA-5qwp-399c-mjwf","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-undetected-trace-trace-run-in-pickle-files","label":"disclosure@vulncheck.com"},{"url":"https://github.com/mmaitre314/picklescan/security/advisories/GHSA-5qwp-399c-mjwf","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://github.com/mmaitre314/picklescan/commit/aecd11be98702caa9ba9b12189d91ad596a36114"},{"url":"https://github.com/mmaitre314/picklescan"}],"tags":["nvd","osv","pip"],"epss":0.00613,"epssPercentile":0.49148,"aliases":["GHSA-5qwp-399c-mjwf"],"ecosystem":"pip","ingestedAt":"2026-07-08T18:25:46.052Z","slug":"CVE-2025-71349","body":"## Overview\n\npicklescan before 0.0.29 fails to detect the built-in trace.Trace.run function when analyzing pickle files, allowing attackers to embed undetected malicious code. Remote attackers can craft malicious pickle files using trace.Trace.run in the reduce method to achieve arbitrary code execution when pickle.load processes the file.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2025-71349)\n\nAffected packages:\n\n- `picklescan < 0.0.29`\n\nPatched in:\n\n- `picklescan 0.0.29`\n\nSource: https://osv.dev/vulnerability/GHSA-5qwp-399c-mjwf","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":213783,"id":"CVE-2025-71349","ts":1790788489855,"field":"cvss","old":null,"new":"8.1"},{"seq":213782,"id":"CVE-2025-71349","ts":1790788489855,"field":"severity","old":"medium","new":"high"}]}