{"cve":"CVE-2013-1633","nvd":{"published":"2013-08-06T02:52:10.333","modified":"2026-06-16T23:51:48.580","status":"Modified","description":"easy_install in setuptools before 0.7 uses HTTP to retrieve packages from the PyPI repository, and does not perform integrity checks on package contents, which allows man-in-the-middle attackers to execute arbitrary code via a crafted response to the default use of the product.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://www.reddit.com/r/Python/comments/17rfh7/warning_dont_use_pip_in_an_untrusted_network_a/","https://pypi.python.org/pypi/setuptools/0.9.8#changes","http://www.reddit.com/r/Python/comments/17rfh7/warning_dont_use_pip_in_an_untrusted_network_a/","https://pypi.python.org/pypi/setuptools/0.9.8#changes"],"products":["python:setuptools"],"source":"nvd","synced_at":"2026-10-19T20:29:16.037019470+00:00"},"epss":{"cve":"CVE-2013-1633","score":0.01977,"percentile":0.80502,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-27x4-j476-jp5f","url":"https://osv.dev/vulnerability/GHSA-27x4-j476-jp5f","summary":"Setuptools vulnerable to Man-in-the-middle attacks","modified":"2024-10-22T17:02:06.583304Z","packages":[{"ecosystem":"PyPI","name":"setuptools","purl":"pkg:pypi/setuptools","ranges":["<0.7"],"fixed":["0.7"]}]},{"id":"PYSEC-2013-22","url":"https://osv.dev/vulnerability/PYSEC-2013-22","summary":"","modified":"2026-06-10T17:02:39.576960663Z","packages":[{"ecosystem":"PyPI","name":"setuptools","purl":"pkg:pypi/setuptools","ranges":["<0.7"],"fixed":["0.7"]}]}],"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."]}