{"id":"BIT-virtualenv-2026-113714","summary":"virtualenv: Downloaded wheel selection and caching precede verification","details":"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.","aliases":["CVE-2026-113714","GHSA-494p-63j8-28p3"],"modified":"2026-10-29T10:55:43.999222952Z","published":"2026-10-29T09:00:28.041Z","database_specific":{"severity":"Low","cpes":["cpe:2.3:a:virtualenv:virtualenv:*:*:*:*:*:*:*:*"]},"references":[{"type":"WEB","url":"https://github.com/pypa/virtualenv/commit/7babec66e043e1cc8bc66869a063653898719d96"},{"type":"WEB","url":"https://github.com/pypa/virtualenv/pull/3430"},{"type":"WEB","url":"https://github.com/pypa/virtualenv/releases/tag/21.14.9"},{"type":"WEB","url":"https://github.com/pypa/virtualenv/security/advisories/GHSA-494p-63j8-28p3"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113714"}],"affected":[{"package":{"name":"virtualenv","ecosystem":"Bitnami","purl":"pkg:bitnami/virtualenv"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"21.14.9"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/virtualenv/BIT-virtualenv-2026-113714.json"},"severity":[{"type":"CVSS_V4","score":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}],"schema_version":"1.9.2"}