Detections
Analytics

SCA: security update for virtualenv (GHSA-5vjq-rrrf-7h2q)

high Tenable Self-Hosted Container Security Plugin ID 476563

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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 receives the raw
 value. The script assigns that value to PS1. In zsh with PROMPT_SUBST, an attacker-influenced environment
 directory, --prompt, or VIRTUALENV_PROMPT value containing command, parameter, or arithmetic expansion
 syntax can therefore execute commands in the user's shell each time the prompt is drawn. A percent sign is
 separately interpreted as a zsh prompt escape but does not by itself execute commands. Plain zsh with
 PROMPT_SUBST disabled and bash are not affected by this mechanism. This issue is fixed in version 21.14.4.
 (CVE-2026-113726)

Solution

Update the virtualenv library and its related packages to version 21.14.4 or later.

See Also

https://github.com/advisories/GHSA-5vjq-rrrf-7h2q

Plugin Details

Severity: High

ID: 476563

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/21/2026

Updated: 10/21/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.48

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-113726

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/21/2026

Vulnerability Publication Date: 10/20/2026

Reference Information

CVE: CVE-2026-113726