{"id":"CVE-2026-113714","aliases":[],"title":"virtualenv: Downloaded wheel selection and caching precede verification","titleSource":"GitHub_M","descriptionSource":"GitHub_M","products":[{"vendor":"pypa","name":"virtualenv","platforms":[],"versions":[{"version":"< 21.14.9","status":"affected"}],"source":"GitHub_M","url":"https://www.cve.org/CVERecord?id=CVE-2026-113714"}],"remediation":[],"description":"virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, download_wheel() writes package-index downloads directly into the reusable wheel/house cache before selecting a verification target from pip's textual Saved output. With default-index digest comparison enabled, a controlled package index can inject a misleading Saved line through a discarded link's data-requires-python attribute; this forged-line variant also requires knowledge of an absolute path to the genuine bundled wheel. The wrong path can then be hashed, while a digest mismatch leaves the rejected archive in the cache for later selection without verification. A separate rejected-cache-file variant requires control over downloaded data or archive selection but not the forged-line prerequisites. Explicit custom-index exceptions are outside the promised PyPI comparison, and the issue does not independently bypass TLS or establish control of default PyPI. This issue is fixed in version 21.14.9.","severity":"low","score":2.3,"published":"2026-10-20T19:09:45.096Z","modified":"2026-10-27T10:59:22.031Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://github.com/pypa/virtualenv/security/advisories/GHSA-494p-63j8-28p3","https://github.com/pypa/virtualenv/pull/3430","https://github.com/pypa/virtualenv/commit/7babec66e043e1cc8bc66869a063653898719d96","https://github.com/pypa/virtualenv/releases/tag/21.14.9"],"sources":[{"name":"CVE","id":"CVE-2026-113714","modified":"2026-10-27T10:59:22.031Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-113714"}],"assessments":[{"source":"GitHub_M","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","score":2.3}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T21:40:30.742Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}