Hi,

The following vulnerability was published for python-pip.

CVE-2026-13346[0]:
| pip would incorrectly handle doubly-encoded package URLs from
| indexes allowing for files to be installed to arbitrary locations on
| disk even when installing wheels.     This vulnerability requires
| downloading or installing a package from a malicious package index
| to succeed, malicious packages alone are not able to exploit this
| vulnerability. Note that this vulnerability only materially impacts
| users running `pip download` with the `--only-binary` option as
| installing source distributions from an untrusted index is already
| an unsafe operation that executes code during install time.


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-2026-13346
https://www.cve.org/CVERecord?id=CVE-2026-13346
[1] https://mail.python.org/archives/list/security-announce@python.org/thread/L2BNQGGVQCEV7DROOORQ7WFKKFF2OOQX/
[2] https://github.com/pypa/pip/pull/14110
[3] https://github.com/pypa/pip/commit/10dfb6b9005484578b386f64b9f36982e3dc6679

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore