{"cve":"CVE-2026-113719","nvd":{"published":"2026-10-20T20:17:18.347","modified":"2026-10-22T16:47:38.403","status":"Awaiting Analysis","description":"virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, PipInstall._uninstall_previous_version() accepts existing seed-package metadata and _uninstall_dist() joins entries from top_level.txt and RECORD to site-packages without checking containment. When a reused destination contains distribution metadata influenced by another account, relative traversal, absolute entries, or linked parents can cause app-data reseeding to delete files outside the environment or the environment root with the invoking user's permissions, provided that user has deletion rights over the named paths. The deletion occurs during environment creation before any later use of the environment. Fresh environments without existing package metadata and creation with --clear do not enter this cleanup path. This issue is fixed in version 21.14.9.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","score":4.5},"cwes":["CWE-22"],"references":["https://github.com/pypa/virtualenv/commit/e3cea6fa10a50fa29cf1fdddd772458fba076d5f","https://github.com/pypa/virtualenv/pull/3428","https://github.com/pypa/virtualenv/releases/tag/21.14.9","https://github.com/pypa/virtualenv/security/advisories/GHSA-hhxq-47xx-j5xx"],"products":[],"source":"nvd","synced_at":"2026-10-23T16:39:26.291718493+00:00"},"epss":{"cve":"CVE-2026-113719","score":0.00144,"percentile":0.03633,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-hhxq-47xx-j5xx","url":"https://osv.dev/vulnerability/GHSA-hhxq-47xx-j5xx","summary":"virtualenv: Seed replacement does not contain metadata deletion paths","modified":"2026-10-23T22:30:04.122629060Z","packages":[{"ecosystem":"PyPI","name":"virtualenv","purl":"pkg:pypi/virtualenv","ranges":["<21.14.9"],"fixed":["21.14.9"]}]}],"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."]}