BIT-VIRTUALENV-2026-115586 virtualenv: Bash activator leaves the --prompt value unescaped in PS1 when promptvars is off, so prompt expansion later executes it (regression in 21.14.9)

virtualenv is a tool for creating isolated virtual python environments. From 21.14.9 until 21.14.13, the bash bin/activate script can copy an attacker-controlled --prompt value into PS1 without escaping dollar signs or backticks when both promptvars and POSIX mode are disabled during activation...

BIT-VIRTUALENV-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...

PT-2026-132505

virtualenv is a tool for creating isolated virtual python environments. From 21.14.9 until 21.14.13, the bash bin/activate script can copy an attacker-controlled --prompt value into PS1 without escaping dollar signs or backticks when both promptvars and POSIX mode are disabled during activation...

PT-2026-132501

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...

PT-2026-132502

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.13.0, the bash activate script that zsh also sources leaves the environment name unescaped; from 21.13.0 until 21.14.4, it escapes backslashes, dollar signs, and backticks only when BASH VERSION is set, so zsh...

SUSE CVE-2026-115586

virtualenv is a tool for creating isolated virtual python environments. From 21.14.9 until 21.14.13, the bash bin/activate script can copy an attacker-controlled --prompt value into PS1 without escaping dollar signs or backticks when both promptvars and POSIX mode are disabled during activation...

Linux Distros Unpatched Vulnerability : CVE-2026-115586

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - virtualenv is a tool for creating isolated virtual python environments. From 21.14.9 until 21.14.13, the bash bin/activate script can copy an attacker-controlle...

UBUNTU-CVE-2026-115586

virtualenv is a tool for creating isolated virtual python environments. From 21.14.9 until 21.14.13, the bash bin/activate script can copy an attacker-controlled --prompt value into PS1 without escaping dollar signs or backticks when both promptvars and POSIX mode are disabled during activation...

SUSE 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...

SUSE CVE-2026-113726

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.13.0, the bash activate script that zsh also sources leaves the environment name unescaped; from 21.13.0 until 21.14.4, it escapes backslashes, dollar signs, and backticks only when BASHVERSION is set, so zsh...

virtualenv: Bash prompt values can change meaning under older compatibility modes

Summary 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 draw the prompt. Affected area Bash runs with compatibility level 4.2 and draws the...

Command Injection

Overview Affected versions of this package are vulnerable to Command Injection via insufficient escaping of the virtual environment prompt string in activate.sh when constructing PS1. When a virtualenv is created with a prompt value containing shell metacharacters such as $ or backticks, the...

GHSA-CX6F-VJHG-G3CC virtualenv: Bash activator leaves the --prompt value unescaped in PS1 when promptvars is off, so prompt expansion later executes it (regression in 21.14.9)

Summary The bash activator puts the caller-supplied prompt value into PS1 unescaped whenever promptvars is off at activation time, and assumes prompt expansion can never run afterwards. promptvars and posix mode are runtime shell state, not a property of the activation moment: re-enabling prompt...

virtualenv: Bash activator leaves the --prompt value unescaped in PS1 when promptvars is off, so prompt expansion later executes it (regression in 21.14.9)

Summary The bash activator puts the caller-supplied prompt value into PS1 unescaped whenever promptvars is off at activation time, and assumes prompt expansion can never run afterwards. promptvars and posix mode are runtime shell state, not a property of the activation moment: re-enabling prompt...

CVE-2026-115586

virtualenv is a tool for creating isolated virtual python environments. From 21.14.9 until 21.14.13, the bash bin/activate script can copy an attacker-controlled --prompt value into PS1 without escaping dollar signs or backticks when both promptvars and POSIX mode are disabled during activation...

CVE-2026-115586

virtualenv is a tool for creating isolated virtual python environments. From 21.14.9 until 21.14.13, the bash bin/activate script can copy an attacker-controlled --prompt value into PS1 without escaping dollar signs or backticks when both promptvars and POSIX mode are disabled during activation...

CVE-2026-115586

virtualenv is a tool for creating isolated virtual python environments. From 21.14.9 until 21.14.13, the bash bin/activate script can copy an attacker-controlled --prompt value into PS1 without escaping dollar signs or backticks when both promptvars and POSIX mode are disabled during activation...

CVE-2026-115586

The virtualenv tool (versions 21.14.9 through 21.14.13 ) contains a regression where the bash bin/activate script fails to escape dollar signs or backticks in the --prompt value when promptvars and POSIX mode are disabled. This allows an attacker to inject command substitutions into the PS1 promp...

EUVD-2026-109131

virtualenv is a tool for creating isolated virtual python environments. From 21.14.9 until 21.14.13, the bash bin/activate script can copy an attacker-controlled --prompt value into PS1 without escaping dollar signs or backticks when both promptvars and POSIX mode are disabled during activation...

CVE-2026-115586 virtualenv: Bash activator leaves the --prompt value unescaped in PS1 when promptvars is off, so prompt expansion later executes it (regression in 21.14.9)

virtualenv is a tool for creating isolated virtual python environments. From 21.14.9 until 21.14.13, the bash bin/activate script can copy an attacker-controlled --prompt value into PS1 without escaping dollar signs or backticks when both promptvars and POSIX mode are disabled during activation...