{"id":"CVE-2020-13091","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-13091","generatedAt":"2026-10-27T23:42:55.177Z","title":"pandas through 1.0.3 can unserialize and execute commands from an untrusted file that is passed to the read_pickle() function, if __reduce__ makes an os.system call.","description":"pandas through 1.0.3 can unserialize and execute commands from an untrusted file that is passed to the read_pickle() function, if __reduce__ makes an os.system call. NOTE: third parties dispute this issue because the read_pickle() function is documented as unsafe and it is the user's responsibility to use the function in a secure manner","published":"2020-05-15T19:15:12.000Z","lastModified":"2026-06-17T02:52:37.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-502"],"affected":["numfocus/pandas"],"epss":{"score":0.03507,"percentile":0.89108,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (3.51%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/0FuzzingQ/vuln/blob/master/pandas%20unserialize.md","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.read_pickle.html","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/0FuzzingQ/vuln/blob/master/pandas%20unserialize.md","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.read_pickle.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-13091","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}