DEBIAN-CVE-2026-113726

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Source
https://security-tracker.debian.org/tracker/CVE-2026-113726
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-113726.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-113726
Upstream
Published
2026-10-22T22:47:32Z
Modified
2026-10-22T23:00:07Z
Summary
[none]
Details

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.

References

Affected packages

Debian:12 / python-virtualenv

Package

Name
python-virtualenv
Purl
pkg:deb/debian/python-virtualenv?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

20.*
20.17.1+ds-1
20.19.0+ds-1
20.21.0+ds-1
20.23.0+ds-1
20.23.0+ds-2
20.24.1+ds-1
20.24.6+ds-1
20.24.6+ds-2
20.25.0+ds-1
20.25.0+ds-2
20.25.1+ds-1
20.26.1+ds-1
20.26.2+ds-1
20.26.6+ds-1
20.27.0+ds-1
20.28.0+ds-1
20.29.1+ds-1
20.29.3+ds-1
20.30.0+ds-1
20.30.0+ds-2
20.30.0+ds-3
20.31.2+ds-1
20.33.1+ds-1
20.34.0+ds-1
20.35.3+ds-1
20.35.4+ds-1
20.36.1+ds-1
20.38.0+ds-1
21.*
21.2.0+ds-1
21.2.4+ds-1
21.3.1+ds-1
21.4.1+ds-1
21.5.1+ds-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-113726.json"

Debian:13 / python-virtualenv

Package

Name
python-virtualenv
Purl
pkg:deb/debian/python-virtualenv?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

20.*
20.31.2+ds-1
20.31.2+ds-1+deb13u1
20.33.1+ds-1
20.34.0+ds-1
20.35.3+ds-1
20.35.4+ds-1
20.36.1+ds-1
20.38.0+ds-1
21.*
21.2.0+ds-1
21.2.4+ds-1
21.3.1+ds-1
21.4.1+ds-1
21.5.1+ds-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-113726.json"

Debian:14 / python-virtualenv

Package

Name
python-virtualenv
Purl
pkg:deb/debian/python-virtualenv?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

20.*
20.31.2+ds-1
20.33.1+ds-1
20.34.0+ds-1
20.35.3+ds-1
20.35.4+ds-1
20.36.1+ds-1
20.38.0+ds-1
21.*
21.2.0+ds-1
21.2.4+ds-1
21.3.1+ds-1
21.4.1+ds-1
21.5.1+ds-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-113726.json"