virtualenv: Command injection via --prompt in activate.bat (batch activator)
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.
beschreibt (1)
Zugehörige CVEs.
| ID | Schweregrad | ausnutzbar | ||
|---|---|---|---|---|
| CVE-2026-102937US | — | — | ||
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… | ||||
Referenzen
Externe Belege — Patches, Meldungen, Analysen.
- https://github.com/pypa/virtualenv/commit/d721ff140ce4afdc2a9b76751e4584e25d9fbea6WEB
- https://github.com/pypa/virtualenv/pull/3250WEB
- https://github.com/pypa/virtualenv/releases/tag/21.7.12WEB
- https://github.com/pypa/virtualenv/security/advisories/GHSA-x78j-v8h9-3j2qWEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-102937WEB
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