{"id":"CVE-2026-113714","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-113714","generatedAt":"2026-10-28T02:14:25.463Z","title":"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…","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.","published":"2026-10-20T19:17:34.000Z","lastModified":"2026-10-27T11:17:28.000Z","status":"Awaiting Analysis","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"4.0","score":2.3,"severity":"LOW","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-354"],"affected":[],"epss":{"score":0.00219,"percentile":0.12269,"date":"2026-10-26","history":[{"date":"2026-10-21","score":0.00212,"percentile":0.10873}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.22%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-20T19:17:34.000Z","detail":{"score":"2.3","severity":"LOW","publishedAt":"2026-10-20T19:17:34.050Z"},"summary":"New CVE, low severity (CVSS 2.3)."}],"references":[{"url":"https://github.com/pypa/virtualenv/commit/7babec66e043e1cc8bc66869a063653898719d96","source":"security-advisories@github.com"},{"url":"https://github.com/pypa/virtualenv/pull/3430","source":"security-advisories@github.com"},{"url":"https://github.com/pypa/virtualenv/releases/tag/21.14.9","source":"security-advisories@github.com"},{"url":"https://github.com/pypa/virtualenv/security/advisories/GHSA-494p-63j8-28p3","source":"security-advisories@github.com"},{"url":"https://github.com/pypa/virtualenv/security/advisories/GHSA-494p-63j8-28p3","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-113714","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}