CVE-2026-113723

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

HIGH
7.1
CVSS Score
Published: October 20, 2026 at 07:51 PM UTC
Updated: October 27, 2026 at 02:16 PM UTC
1 product affected across 1 vendorVirtualenv

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Severity
HIGH7.1
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

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 draw the prompt. This vulnerability is fixed in 21.14.9.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 21.14.9

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHGitHub_M
Vector?

Quick Info

StatusUNDERGOING ANALYSIS
CWE
CWE-78

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