{"cve":"CVE-2020-13091","nvd":{"published":"2020-05-15T19:15:12.167","modified":"2026-06-17T02:52:37.433","status":"Modified","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","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-502"],"references":["https://github.com/0FuzzingQ/vuln/blob/master/pandas%20unserialize.md","https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.read_pickle.html","https://github.com/0FuzzingQ/vuln/blob/master/pandas%20unserialize.md","https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.read_pickle.html"],"products":["numfocus:pandas"],"source":"nvd","synced_at":"2026-10-19T21:04:18.695612450+00:00"},"epss":{"cve":"CVE-2020-13091","score":0.03507,"percentile":0.89192,"date":"2026-10-31"},"kev":null,"osv":[{"id":"PYSEC-2020-73","url":"https://osv.dev/vulnerability/PYSEC-2020-73","summary":"","modified":"2023-11-08T04:02:12.263851Z","packages":[{"ecosystem":"PyPI","name":"pandas","purl":"pkg:pypi/pandas","ranges":["<1.0.4"],"fixed":["1.0.4"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}