CVE-2026-22702: medium-severity vulnerability in pypa virtualenv
virtualenv Has TOCTOU Vulnerabilities in Directory Creation
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.5epss 0.1%
virtualenv is a tool for creating isolated virtual python environments. Prior to version 20.36.1, TOCTOU (Time-of-Check-Time-of-Use) vulnerabilities in virtualenv allow local attackers to perform symlink-based attacks on directory creation operations. An attacker with local access can exploit a race condition between directory existence checks and creation to redirect virtualenv's app_data and lock file operations to attacker-controlled locations. This issue has been patched in version 20.36.1.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Affected products
pypa · virtualenvRelated CVEs — pypa virtualenv
In the same product, most dangerous first.
CVE-2026-113726HIGHvirtualenv activate runs commands from the environment name in zsh with PROMPT_SUBSTEPSS 0.3%CVE-2026-113717LOWvirtualenv: Pip seeding with download omits wheel digest verificationEPSS 0.3%CVE-2026-113722HIGHvirtualenv: Generated POSIX console launchers interpret destination paths as shell syntaxEPSS 0.3%CVE-2026-115586HIGHvirtualenv: Bash activator leaves the --prompt value unescaped in PS1 when promptvars is off, so prompt expansion later executes it (regression in 21.14.9)EPSS 0.3%CVE-2026-113776HIGHvirtualenv activation scripts run code from a path that contains a placeholder nameEPSS 0.3%CVE-2026-113725HIGHvirtualenv bash activate runs commands from an environment name with a backslash before $EPSS 0.3%