{"cve":"CVE-2021-3840","nvd":{"published":"2021-11-12T22:15:08.527","modified":"2026-06-17T04:05:52.400","status":"Modified","description":"A dependency confusion vulnerability was reported in the Antilles open-source software prior to version 1.0.1 that could allow for remote code execution during installation due to a package listed in requirements.txt not existing in the public package index (PyPi). MITRE classifies this weakness as an Uncontrolled Search Path Element (CWE-427) in which a private package dependency may be replaced by an unauthorized package of the same name published to a well-known public repository such as PyPi. The configuration has been updated to only install components built by Antilles, removing all other public package indexes. Additionally, the antilles-tools dependency has been published to PyPi.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-427"],"references":["https://github.com/lenovo/Antilles/security/advisories/GHSA-hgc3-hp6x-wpgx","https://github.com/lenovo/Antilles/security/advisories/GHSA-hgc3-hp6x-wpgx"],"products":["lenovo:antilles"],"source":"nvd","synced_at":"2026-10-19T21:24:39.218183596+00:00"},"epss":{"cve":"CVE-2021-3840","score":0.02036,"percentile":0.81093,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-hgc3-hp6x-wpgx","url":"https://osv.dev/vulnerability/GHSA-hgc3-hp6x-wpgx","summary":"Antilles Dependency Confusion Vulnerability","modified":"2026-07-08T06:29:27.141445075Z","packages":[{"ecosystem":"PyPI","name":"antilles-tools","purl":"pkg:pypi/antilles-tools","ranges":["<1.0.1"],"fixed":["1.0.1"]}]},{"id":"PYSEC-2021-840","url":"https://osv.dev/vulnerability/PYSEC-2021-840","summary":"","modified":"2023-11-08T04:06:27.573601Z","packages":[{"ecosystem":"PyPI","name":"antilles-tools","purl":"pkg:pypi/antilles-tools","ranges":["<1.0.1"],"fixed":["1.0.1"]}]}],"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."]}