{"id":"BIT-virtualenv-2026-113732","summary":"virtualenv activate.fish runs commands from a path or prompt with a backslash before a quote","details":"virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.2, FishActivator inherits ViaTemplateActivator.quote(), which uses POSIX shlex.quote() even though fish interprets backslashes and single quotes differently. An attacker-influenced environment path, --prompt, or VIRTUALENV_PROMPT value containing a backslash before a quote can therefore terminate the generated fish literal and execute command substitution when the user sources activate.fish. This issue is fixed in version 21.14.2.","aliases":["CVE-2026-113732","GHSA-c947-3pg5-gm8q"],"modified":"2026-10-29T10:55:30.348006947Z","published":"2026-10-29T09:00:45.098Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:virtualenv:virtualenv:*:*:*:*:*:python:*:*"]},"references":[{"type":"WEB","url":"https://github.com/pypa/virtualenv/commit/3bddeaf8d02c3ee7f576503efb082f8f494cfcab"},{"type":"WEB","url":"https://github.com/pypa/virtualenv/releases/tag/21.14.2"},{"type":"WEB","url":"https://github.com/pypa/virtualenv/security/advisories/GHSA-c947-3pg5-gm8q"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113732"}],"affected":[{"package":{"name":"virtualenv","ecosystem":"Bitnami","purl":"pkg:bitnami/virtualenv"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"21.14.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/virtualenv/BIT-virtualenv-2026-113732.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}],"schema_version":"1.9.2"}