{"id":"CVE-2026-102937","published":"2026-09-29T21:17:18.893","lastModified":"2026-09-29T21:17:18.893","description":"virtualenv is a tool for creating isolated virtual python environments. Prior to 21.7.12, BatchActivator.quote() returns prompt text unchanged before activate.bat inserts it into a cmd.exe set \"VAR=value\" statement. An attacker who influences --prompt, VIRTUALENV_PROMPT, or the corresponding configuration value can include a double quote that closes the assignment and leaves following cmd.exe operators as executable syntax. When a user activates the generated Windows environment, the injected commands run with that user's privileges. This issue is fixed in version 21.7.12.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-78"],"vendors":[],"products":[],"references":[{"url":"https://github.com/pypa/virtualenv/commit/d721ff140ce4afdc2a9b76751e4584e25d9fbea6","tags":[]},{"url":"https://github.com/pypa/virtualenv/pull/3250","tags":[]},{"url":"https://github.com/pypa/virtualenv/releases/tag/21.7.12","tags":[]},{"url":"https://github.com/pypa/virtualenv/security/advisories/GHSA-x78j-v8h9-3j2q","tags":[]}],"exploitRefs":[{"url":"https://github.com/pypa/virtualenv/commit/d721ff140ce4afdc2a9b76751e4584e25d9fbea6","tags":[]},{"url":"https://github.com/pypa/virtualenv/pull/3250","tags":[]},{"url":"https://github.com/pypa/virtualenv/releases/tag/21.7.12","tags":[]},{"url":"https://github.com/pypa/virtualenv/security/advisories/GHSA-x78j-v8h9-3j2q","tags":[]}],"hasPoc":true,"ai":null}