CVE-2026-113713

Name	CVE-2026-113713
Description	virtualenv is a tool for creating isolated virtual python environments. From 21.14.8 until 21.14.10, the app-data seeder can leave an environment linked to temporary package files that virtualenv deletes when creation finishes. The environment-variable and configuration-file forms of symlink_app_data can enable this state even though the command-line flag is disabled for temporary app-data. The resulting environment depends on a cache pathname that its owner no longer controls. This issue is fixed in version 21.14.10.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1151685

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
python-virtualenv (PTS)	bookworm	20.17.1+ds-1	vulnerable
	trixie	20.31.2+ds-1+deb13u1	vulnerable
	forky, sid	21.5.1+ds-1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
python-virtualenv	source	(unstable)	(unfixed)			1151685

Notes

https://github.com/pypa/virtualenv/security/advisories/GHSA-4f8h-vr72-p32c
https://github.com/pypa/virtualenv/pull/3437
Fixed by: https://github.com/pypa/virtualenv/commit/b81995c3feab9e1edb453c75ffc6616e1a77335e (21.14.10)