Command Injection

Overview Affected versions of this package are vulnerable to Command Injection via insufficient escaping of the virtual environment name in the bash activate script src/virtualenv/activation/bash/activate.sh. Bash processes PS1 in two passes on every prompt redraw: it first decodes backslash prom...

CVE-2026-113725

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.7, the bash activate script escapes the environment name for only one of the two passes bash makes over PS1, so a backslash in the name undoes the escaping and a name containing $... runs as commands in the...

CVE-2026-113725 virtualenv bash activate runs commands from an environment name with a backslash before $

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.7, the bash activate script escapes the environment name for only one of the two passes bash makes over PS1, so a backslash in the name undoes the escaping and a name containing $... runs as commands in the...

CVE-2026-113725

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.7, the bash activate script escapes the environment name for only one of the two passes bash makes over PS1, so a backslash in the name undoes the escaping and a name containing $... runs as commands in the...

CVE-2026-113725 virtualenv bash activate runs commands from an environment name with a backslash before $

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.7, the bash activate script escapes the environment name for only one of the two passes bash makes over PS1, so a backslash in the name undoes the escaping and a name containing $... runs as commands in the...

CVE-2026-113725 virtualenv bash activate runs commands from an environment name with a backslash before $

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.7, the bash activate script escapes the environment name for only one of the two passes bash makes over PS1, so a backslash in the name undoes the escaping and a name containing $... runs as commands in the...

CVE-2026-113725

The virtualenv tool, used for creating isolated Python environments, is vulnerable to command injection in versions prior to 21.14.7 . The root cause lies in the bash activate script , which fails to properly escape the environment name during one of the two passes bash makes over PS1 . Specifica...

Symlink Attack

Overview Affected versions of this package are vulnerable to Symlink Attack via the onerror handler in src/virtualenv/util/path/sync.py, which previously called os.chmod on a path without first checking whether it is a symbolic link. On Windows, when a read-only file cannot be deleted during a tr...

CVE-2026-113724

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, the safedelete deletion error handler responds to a failed removal by reading mode bits with os.lstatpath and applying owner-write permission with os.chmodpath, ..., which follows a symlink. A planted link...

CVE-2026-113724 virtualenv: Deletion recovery can change a symlink target's mode

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, the safedelete deletion error handler responds to a failed removal by reading mode bits with os.lstatpath and applying owner-write permission with os.chmodpath, ..., which follows a symlink. A planted link...

CVE-2026-113724

The virtualenv tool, used for creating isolated Python environments, is vulnerable to a symlink-following issue in versions prior to 21.14.9 . The safe_delete() deletion error handler uses os.lstat(path) to read mode bits and os.chmod(path, ...) to apply owner-write permissions. Because these ope...

CVE-2026-113724 virtualenv: Deletion recovery can change a symlink target's mode

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, the safedelete deletion error handler responds to a failed removal by reading mode bits with os.lstatpath and applying owner-write permission with os.chmodpath, ..., which follows a symlink. A planted link...

CVE-2026-113724

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, the safedelete deletion error handler responds to a failed removal by reading mode bits with os.lstatpath and applying owner-write permission with os.chmodpath, ..., which follows a symlink. A planted link...

CVE-2026-113723 virtualenv: Bash prompt values can change meaning under older compatibility modes

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, caller-supplied prompt text can become executable syntax in the bash activation prompt. An attacker must influence the value passed to virtualenv, and a user must subsequently activate the environment and dr...

CVE-2026-113723 virtualenv: Bash prompt values can change meaning under older compatibility modes

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, caller-supplied prompt text can become executable syntax in the bash activation prompt. An attacker must influence the value passed to virtualenv, and a user must subsequently activate the environment and dr...

CVE-2026-113723

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, caller-supplied prompt text can become executable syntax in the bash activation prompt. An attacker must influence the value passed to virtualenv, and a user must subsequently activate the environment and dr...

CVE-2026-113723

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, caller-supplied prompt text can become executable syntax in the bash activation prompt. An attacker must influence the value passed to virtualenv, and a user must subsequently activate the environment and dr...

Arbitrary Code Injection

Overview Affected versions of this package are vulnerable to Arbitrary Code Injection via insufficient escaping of the VIRTUALENVPROMPT variable in activate.sh, which allows an attacker who controls the virtual environment prompt string to inject arbitrary shell code. When the activation script...

CVE-2026-113723

The virtualenv tool, used for creating isolated Python environments, is vulnerable to OS Command Injection (CWE-78) in versions prior to 21.14.9 . The root cause is that caller-supplied prompt text can be interpreted as executable syntax within the bash activation prompt when using older compatib...

Command Injection

Overview Affected versions of this package are vulnerable to Command Injection via the seed mechanism's console script launcher rewriting logic in pipinvoke.py when a virtual environment is created on POSIX systems with an interpreter path containing spaces. The rewritelaunchers method rewrites...