{"id":"CVE-2026-113776","revision":"55a4e0b0f952452db60be886b8b5ee9c","records":[{"revision":"55a4e0b0f952452db60be886b8b5ee9c","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-113776","aliases":[],"title":"virtualenv activation scripts run code from a path that contains a placeholder name","description":"virtualenv is a tool for creating isolated virtual python environments. From 20.26.6 until 21.14.2, ViaTemplateActivator.instantiate_template() replaces placeholders one key at a time across the complete activation template, so trigger names such as __VIRTUAL_NAME__, __VIRTUAL_ENV__, or __VIRTUAL_PROMPT__ inside an already substituted and quoted environment path or prompt can be replaced during a later pass. The later value's quoting can close the earlier literal and execute the remaining path when a user activates the environment through bash, fish, xonsh, or activate_this.py. The distinct csh prompt-display token __VIRTUAL_PROMPT_DISPLAY_TCSH__ can instead break the generated script without establishing command execution. The attacker must influence the destination path or --prompt, and a value without a relevant placeholder name does not trigger this mechanism. This issue is fixed in version 21.14.2.","state":0,"publishedAt":"2026-10-20T22:03:18.274+00:00","modifiedAt":"2026-10-20T22:03:18.274+00:00","affected":[{"ecosystem":"Vendor product","name":"virtualenv","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"pypa\",\n                    \"product\": \"virtualenv\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 20.26.6, < 21.14.2\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://github.com/pypa/virtualenv/security/advisories/GHSA-8rjx-v5ww-45pp","https://github.com/pypa/virtualenv/commit/602b26623a724827ff171bf11fef4ad186d01f74","https://github.com/pypa/virtualenv/releases/tag/21.14.2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-113776","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-113776","identifiers":["CVE-2026-113776"]},"retained":false,"historicalAffected":[]}],"coverage":[]}