Hi,

The following vulnerability was published for python-virtualenv.

CVE-2026-22702[0]:
| 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.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-22702
https://www.cve.org/CVERecord?id=CVE-2026-22702
[1] https://github.com/pypa/virtualenv/pull/3013
[2] https://github.com/pypa/virtualenv/security/advisories/GHSA-597g-3phw-6986
[3] https://github.com/pypa/virtualenv/commit/dec4cec5d16edaf83a00a658f32d1e032661cebc

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

We believe that the bug you reported is fixed in the latest version of
python-virtualenv, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1125191@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Stefano Rivera <stefanor@debian.org> (supplier of updated python-virtualenv package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Sat, 10 Jan 2026 21:08:14 -0400
Source: python-virtualenv
Architecture: source
Version: 20.36.1+ds-1
Distribution: unstable
Urgency: medium
Maintainer: Debian Python Team <team+python@tracker.debian.org>
Changed-By: Stefano Rivera <stefanor@debian.org>
Closes: 1125191
Changes:
 python-virtualenv (20.36.1+ds-1) unstable; urgency=medium
 .
   * New upstream release.
    - Fixes CVE-2026-22702: TOCTOU symlink-based attacks on directory creation.
      (Closes: #1125191)
   * Bump Standards-Version to 4.7.3, dropping the Priority field.
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