{"id":"CVE-2026-113720","revision":"fac52055b5de46b9925d630d4c88015e","records":[{"revision":"fac52055b5de46b9925d630d4c88015e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-113720","aliases":[],"title":"virtualenv: Seeded files retain permissions from an older cache","description":"virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, the app-data copy seeder uses shutil.copy() to copy cached package files into later environments, causing cached source modes to override the current run's umask. A cache populated under a permissive umask can therefore produce files writable by another local account in a later traversable environment, allowing package code such as pip/__init__.py to be modified and executed by the environment owner. The attacker cannot force the earlier umask, and a private destination parent prevents access. This issue is fixed in version 21.14.9.","state":0,"publishedAt":"2026-10-20T19:43:32.451+00:00","modifiedAt":"2026-10-21T15:52:33.658+00:00","affected":[{"ecosystem":"Vendor product","name":"virtualenv","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"pypa\",\n                    \"product\": \"virtualenv\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 21.14.9\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N","score":4.4,"severity":"MEDIUM"}],"references":["https://github.com/pypa/virtualenv/security/advisories/GHSA-fc2g-4w5p-6whm","https://github.com/pypa/virtualenv/pull/3425","https://github.com/pypa/virtualenv/commit/35f0b33562790176dd186d0a3c517af3acc7a0e1","https://github.com/pypa/virtualenv/releases/tag/21.14.9"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-113720","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-113720","identifiers":["CVE-2026-113720"]},"retained":false,"historicalAffected":[]}],"coverage":[]}